Re: Historische Steinbearbeitung nach altägyptischen Vorbild
Verfasst: 27.09.2023 21:11
Dieses Thema wird grundlegend editiert was eine weile in Anspruch nehmen kann. Vor Postings im thema bitte nach Möglichkeit während des Editiervorgangs absehen. Danke.
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This topic is undergoing major editing, which may take a while. If possible, please refrain from postings in the topic during the editing process. Thank you.
...
Ehemals S. 7:
Vielen Dank, auch für die sehr interessante Quelle.
Ja, das ist ein Kurbelbohrer mit in Netzen angehängten Gewichten und unterem gegabeltem Ende zur Aufnahme von Bohrköpfen aus Stein - wie sie auch in der von Dir genannten Quelle und bei [Stocks, 2013] thematisiert werden. An einen solchen Kurbelbohrer ließen sich theoretisch und praktisch aber auch Kupferröhren arretieren, womit er zum Hohlbohrer werden würde.
Sofern ich mich gerade erinnerungsgemäß nicht irre geht Stocks von "Schwunggewichten" aus (vielleicht verwechsle ich den Zusammenhang gerade aber auch mit der von Stocks besprochenen Seilherstellung der alten Ägypter). Der Nutzen dieser Gewichte als fixer Aufdruckkraft ist jedoch unbestreitbar (wahrscheinlich ist von einer Kombi der Effekte auszugehen).
Interessant im Hinblick auf scheibenförmige bzw. trommelförmige Gewichte o.ä. wäre m.E. in Versuchen noch zu erörtern, ob oberhalb oder unterhalb eines Bohrerschafts positionierte Gewichte für bestimmte Einsatzzwecke effektiver sind.
Ich habe zu dieser Art von Bohrgeräten auch noch eine andere Theorie entwickelt (die nicht neu sein muss, dazu habe ich bisher jedoch in Quellen nichts gefunden):
Die Astgabelung solcher Bohrer diente nach meiner Theorie alternativ auch dazu, ein innen (ggf. nur ansatzweise) ausgehöhltes Gefäß aufzuklemmen, um es mit rotierender Bewegung außen in einem entsprechend präparierten Untergrund bzw. einer entsprechenden Aufnahme zu beschleifen (siehe meine Versuche, den auf einen Kurbelbohrerschaft aufgeklemmten Gefäßrohling in einem engen Gefäß in Quarzsand rotierend zu beschleifen).
Wenn ich mich nicht irre gibt es eine altägyptische Hieroglyphe die so aussieht, als würde ein Kurbelbohrer ins Erdreich reichen (horizontaler Strich in der Hieroglyphe im Bereich der Gabelung).
Technisch wäre das beschriebene Prozedere erfahrungsgemäß möglich und Vorversuche zum Thema hatte ich mir bereits seit längerem vorgenommen. Außerdem wäre es auch für Aushöhlarbeiten von steinernen Gefäßen zweckmäßig, anzunehmen dass die alten Ägypter die Gefäße hierfür im Erdreich einbuddelten und damit für die Beschleifung fixierten.
Es gibt auch direkte moderne ägyptische Vorbilder für in etwa affine Herangehensweisen (Nachweise zu dieser Aussage wären von mir noch rauszusuchen).
QUELLEN:
(folgen)
. . .
The documentation of the previous series of preliminary tests and my intention to sign aesthetically (and to meet my requirements) and date the small stone vase with a lid made of Baumberger sandlimestone, which was made in the last few weeks, in a way that is also interesting for me from an artistic and experimental archeological point of view due to the past heat wave, due to missing equipment that still has to be organized and due to handicraft skills that still have to be developed (chasing), took more time than originally planned.
Since I want and have to use the summer for "outdoor work", I am therefore postponing the signing and dating work as well as the surveying work on the little vase with a lid made of Baumberger sand-lime brick (probably) to the coming autumn and winter (but possibly also to an earlier possible date). ).
In the last few weeks I have started another series of preliminary tests at the same time. This series of preliminary tests is about my intention one day - if possible due to the overall conditions - to reconstruct the so-called Sabu disc.
Often referred to as an "Out Of Place Artifact" (OOP Artifact), the Sabu Disk is an ancient Egyptian work piece with very special characteristics. In particular, the thin-walled and filigree nature of the Sabu disc is a major challenge with regard to the processing options for soft stone (but of course nothing generally impossible for a suitably qualified or experienced craftsman, otherwise the Sabu disc would not exist).
For the reasons mentioned, I will therefore make this series of topics a little more dynamic and first devote myself to the preliminary test on the subject of the one day planned reconstruction of the Sabu disc and insert interim thrusts on the previous series of preliminary tests (small vase with a lid made of Baumberger sandlimestone) as soon as there is news on this.
In the series of preliminary tests that have started, I am initially not concerned with the planned production of a copy of the Sabu disc that is as true to the original as possible (scaled down) but with a general testing of the possibilities of "turning off" structures that are as filigree as possible in the style of the Sabu disc on a workpiece made of soft stone that is attached to a two-point bearing axle " to produce.
QUELLEN / Sources:
Bibliografische Angaben für „Sabu-Scheibe“
Seitentitel: Sabu-Scheibe
Herausgeber: Wikipedia – Die freie Enzyklopädie.
Autor(en): Wikipedia-Autoren, siehe Versionsgeschichte
Datum der letzten Bearbeitung: 1. März 2023, 00:38 UTC
Versions-ID der Seite: 231356332
Permanentlink: https://de.wikipedia.org/w/index.php?ti ... =231356332
Datum des Abrufs: 6. Juli 2023, 17:33 UTC
. . .
Vorbereiteter Rohling für Vorversuch zur Rekonstruktion der Sabuscheibe.
Bildrechte: (C) me. Vinzenz Maria Hoppe, 2023
IMG:
A blank made from Baumberger sandlimestone for the planned series of preliminary tests for the one day planned reconstruction of the Sabu disc.
. . .
Preliminary test for the planned reconstruction of the Sabu disc: Production of an approximation model from Baumberger sandlimestone
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HAFTUNGSAUSSCHLUSS FÜR INHALTE:
Eventuell erfolgende inhaltliche Änderungen und Korrekturen können jederzeit durch mich erfolgen und werden von mir nicht jeweils explizit dokumentiert.
Trotz sorgfältiger Prüfung durch mich als Ersteller von Inhalten gilt: Die Nutzung der sämtlichen hier erstellten inhalte erfolgt ausschließlich auf eigenenes Risiko (gilt insbesondere für entgangenen Gewinn und für sämtliche vorstellbaren, aus der Rezipierung und Nutzung der hier präsentierten inhalte möglichen Folgen)! Inhaltliche Fehler, Logikfehler und z.B. Übersetzungsfehler in der Dokumentation sind trotz sorgfältiger Prüfung des Verfassers nicht ausgeschlossen.
Im Zusammenhang mit dieser Dokumentation verwendete Internetadressen im Rahmen der Zitierpflicht und des wissenschaftlichen Arbeitens stellen per Definiton ausdrücklich keine Linkempfehlungen dar: Die bloße Anführung von Internetadressen als Quellen im Zusammenhang mit dieser Gesamt-Dokumentation (die in ihrer Abfolge durch Posts anderer Forenmitglieder unterbrochen werden kann) bedeutet nicht zwangsläufig, dass der Verfasser die sämtlichen Inhalte von zitierten Internetadressen (dazu gehören z.B. Ansichten von Autoren und deren verbreitete Theorien) automatisch teilt. Deshalb gilt: Jede Verwendung der im Zusammenhang mit dieser Gesamtdokumentation zitierten Internetquellen ausschließlich auf eigenes Risiko und frei von jeglicher Haftung seitens des Verfassers.
[HAFTUNGSAUSSCHLUSS ENDE]
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DISCLAIMER FOR CONTENT:
Any changes and corrections to the content that may occur can be made by me at any time and are not explicitly documented by me in each case.
Despite careful examination by me as the creator of specific content, the following applies: the use of all content created here by me as the author is exclusively at your own risk (applies in particular to lost profit and to all conceivable consequences of the reception and use of the content presented here)! Errors in content, logic errors and, for example, translation errors in the documentation cannot be ruled out despite careful examination by the author.
Internet addresses used in connection with this documentation in the context of the citation obligation and scientific work are by definition expressly no link recommendations: The mere citing of Internet addresses as sources in connection with this overall documentation (the sequence of which can be interrupted by posts from other forum members) does not necessarily mean that the author has accepted the entire content of cited Internet addresses (this includes, for example, views of authors and their widespread theories) automatically shares. Therefore, the following applies: Any use of the Internet sources cited in connection with this complete documentation is exclusively at your own risk and free of any liability on the part of the author.)
[END OF DISCLAIMER]
. . .
Preliminary test for the planned reconstruction of the Sabu disc: Production of an approximation model from Baumberger sand-lime brick
[Addendum from 07/23/2023:]
Since the effort of the preliminary test to prepare the reconstruction of the Sabu disc would be extremely high according to my expectations and requirements, I decided afterwards to only do the documentation of this interesting stone processing project in flashs. The following articles will be (and were) changed accordingly without me explicitly going into each individual point of the changes. Content was (and will be) removed by me in places to a large extent.
[addendum end]
. . .
There is no doubt that the ancient Egyptians had the possibilities and skills to turn various stone materials using two-point axis bearing (off) turning processing.
Special exhibits in the Egyptian Museum in Cairo give a small insight into the craftsmanship in this area [see source].
The purpose of this preliminary test is not to show that natural stone can be turned externally (which has long been known and has been practiced for thousands of years): this series of preliminary tests is particularly about narrowing down the most likely methods with which the ancient Egyptians turned stone and about the simplest possible apparatuses that can be derived from this (for which no direct models can be found to this day).
The documentation of the preliminary test, which has now progressed successfully, has been significantly delayed due to another heat wave and extreme weather.
Content will be created as soon as I can.
I will upload more photos as soon as possible.
Mehr dazu später.
QUELLEN / Sources:
Homepage: Spirit&Stone
Seitenbetreiber: unbekannt, kanadische Homepage
http://www.theglobaleducationproject.or ... dfact3.php
Datum und Zeitpunkt des Zugriffs: 15.07.2023, 10.09 MEZ.
. . .
Update on the current stone processing project:
Up until now, the documentation of the project has not been possible relatively simultaneously with the progress of the project. The project is currently in a critical stage, in a positive sense, in terms of handicraft aspects, which demands my full attention.
I will therefore not upload any further documentation on the project until 21.07.23 at the earliest.
From the outset, I avoided filming the crafting processes in this project and focused on photography, because otherwise the overall effort would have been too extreme.
The Sabu disc is neither a component nor a model of a drive unit nor a ship's propeller: it is a poorly crafted aesthetic vessel as a result of high craftsmanship.
. . .
- CONTINUATION -
[Addendum from 07/23/2023:]
Since the effort of the preliminary test to document my preparations for the reconstruction of the Sabu disc would be extremely great according to my expectations and requirements, I decided afterwards to only do the documentation of this interesting stone processing project in a flash. The following articles will be (and were) changed accordingly without me explicitly going into each individual point of the changes. Content was (and will be) removed by me in places to a large extent.
[addendum end]
The project is now relatively close to the final work steps, which will still take a certain amount of time due to the filigree work involved. This is also because the workpiece is now becoming more and more sensitive to damage and is therefore in the most critical processing phases of the entire project.
At this point, highlights of the most important processing phases or processing steps of the original Baumberger sandlimestone blank, which have resulted from the preliminary test so far: I do not provide a detailed documentation of the work steps carried out in this stone processing project due to the enormous effort required for this.
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (1, 2023 / IMG 1 - 14))
SOURCE: https://youtu.be/GIQUnfJ7BOI?si=dOV0_2oZ3I-Dh4OR
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (1).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 1: Important processing step in the preliminary test:
"Shafting" the blank made of Baumberger sandlimestone on a softwood axis.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (2).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 2: Important processing step in the preliminary test:
Production of the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (3).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 3: Important processing step in the preliminary test:
First removal of excess stone material on the roughly hewn blank to create a round shape that is as precise as possible.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (4).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 4: Important processing step in the preliminary test:
Making a wooden axle box in the style of a simple "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (5).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 5: Important processing step in the preliminary test:
First attempts to work and shape the blank placed in the lathe with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (6).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 6: Important processing step in the preliminary test:
First successful turning and scraping machining of the blank placed in the lathe with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (7).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 7: Important processing step in the preliminary test:
First successful turning and scraping work on a relatively precise peripheral surface and work on a relatively precise, cleanly worked edge on the round body of the blank placed in the lathe with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (8).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 8: Important processing step in the preliminary test:
Successful removal of the ridges that had formed on the side surface of the blank, which was created by turning and scratching, and fundamental leveling of the side surface with tools made of flint and copper and using sharp-edged edges of a cast concrete slab.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (9).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 9: Important processing step in the preliminary test:
Successful shortening of the axis of the "shafted" blank and correspondingly precise conversion of the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (10).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 10: Important processing step in the preliminary test:
Successful lathing, scraping, working on a second side surface and gradual shaping into the "drum body" of the blank that was placed in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (11).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 11: Important processing step in the preliminary test: Altogether successful turning and scraping plan leveling of the side surfaces of the blank placed in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (12).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 12: Important processing step in the preliminary test:
Creation of an outline (here as a side view of a slate shingle) to determine and plan the proportions and dimensions of the planned workpiece as closely as possible (here necessarily interpreted freely in terms of design and material) to the shape and proportions of the Sabu disc.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (13).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 13: Important processing step in the preliminary test:
Twisting scratch-scraping transfer of dimensions and proportions in relation to the original; the sabu disc; upset outline for the planned workpiece (marking) on the blank placed in the "lathe" with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (14).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 14: Important processing step in the preliminary test:
turning and scraping reduction of the blank placed in the "lathe" with flint and copper tools according to the proportions and dimensions planned in the outline.
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (1, 2023 / IMG 1 - 14))
SOURCE: https://youtu.be/752sTW3xGWM?si=skxBmxxRnRBPevSb
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (15).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 15: Important processing step in the preliminary test: First successful turning and scraping application of the underside of the planned workpiece to the blank placed in the "lathe" with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (16).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 16: Important processing step in the preliminary test:
Turning, scraping, fine working on the back of the planned workpiece on the blank placed in the "lathe" with tools and aids (measuring tool of copper) made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (17).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 17: Important processing step in the preliminary test:
Turning and scraping application of the rounded peripheral edge to the upper side of the planned workpiece with flint and copper tools on the blank placed in the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (18).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 18: Important processing step in the preliminary test:
Turning and scratch-scraping application of the upper side of the planned workpiece with transfer of important dimensions with flint and copper tools on the blank placed in the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (19).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 19: Important processing step in the preliminary test:
Turning, scraping transfer of important dimensions and proportions to the upper side of the blank clamped in the "lathe" and first application of the flattening for the development of the ring-segment-shaped decorative elements with perforations on the blank with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (20).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 20: Important processing step in the preliminary test:
Scratch-scraping and pecking of the ring-segment-shaped decorative elements on the blank clamped in the "lathe" with tools made of flint and copper.
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[Source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (21).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 21: Important processing step in the preliminary test:
Scratching and picking of the planned thin-walled, bowl-shaped hollowing out of the workpiece with a floral ornamental look is applied to the blank clamped in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (22).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 22: Important processing step in the preliminary test:
The current processing status of the workpiece with scratch-scraping and picking planned thin-walled bowl-shaped hollowing out of the workpiece with floral decorative optics on the blank clamped in the "lathe" with tools made of flint and copper. The first turning of the inner thin-walled cylindrical element with tools made of flint and primarily copper can also be seen here on the workpiece.
At this point in the processing progress, the result is already a complete success. This even if the workpiece were to be seriously damaged or even destroyed during processing or transport: for a first approach to this special arts and crafts topic, all the important questions for me have already been answered. The end result of machining the workpiece is ultimately a question of experience and skill as well as patience as well as the material.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (23).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 23: Important processing step in the preliminary test:
Conforming scraping deepening of the rough formwork of blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (24).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 24: Important processing step in the preliminary test:
Scratch-scraping re-turning and deepening of the drum-shaped turning in the center of the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (25).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 25: Important processing step in the preliminary test: Important processing step in the preliminary test: Scratch-scratching, fine first shaping of the outside of one of the three lobes to be worked out on the blank (here in comparison to the Sabu disc as a template due to the selected size and dimensioning of the workpiece with greatly shortened lobes).
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (26).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 26: Important processing step in the preliminary test:
First scratch-scraping undercutting of one of the lobes on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (27).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 27: Important processing step in the preliminary test:
First rough donned steep groove; below the extended lobes as a connecting element between the inner side wall and inner "bottom surface" of the blank as a planned thin-walled stone with tools made of copper. The current processing status of the blank made of Baumberger sandlimestone.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (28).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 28: Important processing step in the preliminary test:
Equal expansion of the undercutting of all lobes on the workpiece and adjustment of the "floor level" on the blank with copper tools.
. . .
- CONTINUATION -
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (3, 2023 / IMG 29 - 42)
SOURCE: https://youtu.be/pIvSfAQLQSw?si=Zcf62VhdQ-vDLjsq
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (29).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 29: Important processing step in the preliminary test:
Partial turning of the drum-shaped middle section on the Baumberger sandlimestone blank again in refer to the design of the Sabu disk using copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (30).jpg
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 30: Important processing step in the preliminary test:
Current processing status of the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (31).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 31: Making a simple caliper gauge from a section of bent wood and home-made thin and sharpened bamboo sticks: the curved round section was made from the handle of a hardwood walking stick, the round section was sawn to size with a modern hacksaw, the through-holes were made with a cordless screwdriver with modern drill bits: one of the bamboo stick sections was pressed into one of the holes drilled in the round wood (fixed adjustment), another was designed to be movable: this resulted in a reasonably exact "pointing device" with relatively little effort. By marking the movable bamboo stick accordingly, a fixed measuring depth could be set with the dotting device, which was estimated at around 4 to 5 mm (I will measure it later).
Making a simple paint from powdered modern commercially available charcoal tablets, fine powder from the machined blank of Baumberger sandlimestone and tap water.
Making a simple little brush from a section of the self-made bamboo sticks: one end of the bamboo stick was frayed flattened and then cut to size with a pocket knife.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (32).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 32: Measuring determination of the wall thickness of the vessel bottom to be precisely machined on the blank with the self-made puncturing device.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (33).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 33: First scratch-scraping application of puncturing points to determine the wall thickness to be worked on of the vessel bottom on the blank with copper tools: for this purpose, a measuring point to be applied was reworked and measured again with the self-made puncturing device until the desired measuring depth was reached.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (34).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 34: Mark the first dot with the paint you made yourself and a small bamboo brush on the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (35).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 35: Processing status of the blank with many different measuring points set and marked with the self-made paint and small bamboo brush.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (36).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 36: Scraping away the excess sand-lime brick material ("Bossen") with copper tools on the blank: the marked dotted measuring points serve as a guide: by leveling the connection of the measuring points, the wall thickness at the bottom of the vessel to be manufactured is relatively exactly uniform.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (37).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 37: Processing status of the scraping leveling of the bottom of the vessel on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (38).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 38: Scratch-scraping fine finishing of the wreath-like vessel rim on a segment of the blank, worked to the desired wall thickness, with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (39).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 39: Scratch-scraping fine reworking of the wreath-like vessel rim on a segment of the blank, worked to the desired wall thickness, with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (40).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 40: Scratch-scraping removal of the sandlimestone material ("Bossen") lying between the applied lobe and the drum-shaped middle part between two segments worked to the desired wall thickness for the purpose of connecting the bottom level of the vessel to be produced on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (41).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 41: Scratch-scraping application and finishing of the steep groove between the planned bottom of the vessel and the steeply rising wall of the vessel under a lob on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (42).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 42: First rough scratch-scraping application and finishing of the steep groove (connecting area between the bottom of the vessel and the part of the rising wall of the vessel) on the blank with copper tools.
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This topic is undergoing major editing, which may take a while. If possible, please refrain from postings in the topic during the editing process. Thank you.
...
Ehemals S. 7:
Vielen Dank, auch für die sehr interessante Quelle.
Ja, das ist ein Kurbelbohrer mit in Netzen angehängten Gewichten und unterem gegabeltem Ende zur Aufnahme von Bohrköpfen aus Stein - wie sie auch in der von Dir genannten Quelle und bei [Stocks, 2013] thematisiert werden. An einen solchen Kurbelbohrer ließen sich theoretisch und praktisch aber auch Kupferröhren arretieren, womit er zum Hohlbohrer werden würde.
Sofern ich mich gerade erinnerungsgemäß nicht irre geht Stocks von "Schwunggewichten" aus (vielleicht verwechsle ich den Zusammenhang gerade aber auch mit der von Stocks besprochenen Seilherstellung der alten Ägypter). Der Nutzen dieser Gewichte als fixer Aufdruckkraft ist jedoch unbestreitbar (wahrscheinlich ist von einer Kombi der Effekte auszugehen).
Interessant im Hinblick auf scheibenförmige bzw. trommelförmige Gewichte o.ä. wäre m.E. in Versuchen noch zu erörtern, ob oberhalb oder unterhalb eines Bohrerschafts positionierte Gewichte für bestimmte Einsatzzwecke effektiver sind.
Ich habe zu dieser Art von Bohrgeräten auch noch eine andere Theorie entwickelt (die nicht neu sein muss, dazu habe ich bisher jedoch in Quellen nichts gefunden):
Die Astgabelung solcher Bohrer diente nach meiner Theorie alternativ auch dazu, ein innen (ggf. nur ansatzweise) ausgehöhltes Gefäß aufzuklemmen, um es mit rotierender Bewegung außen in einem entsprechend präparierten Untergrund bzw. einer entsprechenden Aufnahme zu beschleifen (siehe meine Versuche, den auf einen Kurbelbohrerschaft aufgeklemmten Gefäßrohling in einem engen Gefäß in Quarzsand rotierend zu beschleifen).
Wenn ich mich nicht irre gibt es eine altägyptische Hieroglyphe die so aussieht, als würde ein Kurbelbohrer ins Erdreich reichen (horizontaler Strich in der Hieroglyphe im Bereich der Gabelung).
Technisch wäre das beschriebene Prozedere erfahrungsgemäß möglich und Vorversuche zum Thema hatte ich mir bereits seit längerem vorgenommen. Außerdem wäre es auch für Aushöhlarbeiten von steinernen Gefäßen zweckmäßig, anzunehmen dass die alten Ägypter die Gefäße hierfür im Erdreich einbuddelten und damit für die Beschleifung fixierten.
Es gibt auch direkte moderne ägyptische Vorbilder für in etwa affine Herangehensweisen (Nachweise zu dieser Aussage wären von mir noch rauszusuchen).
QUELLEN:
(folgen)
. . .
The documentation of the previous series of preliminary tests and my intention to sign aesthetically (and to meet my requirements) and date the small stone vase with a lid made of Baumberger sandlimestone, which was made in the last few weeks, in a way that is also interesting for me from an artistic and experimental archeological point of view due to the past heat wave, due to missing equipment that still has to be organized and due to handicraft skills that still have to be developed (chasing), took more time than originally planned.
Since I want and have to use the summer for "outdoor work", I am therefore postponing the signing and dating work as well as the surveying work on the little vase with a lid made of Baumberger sand-lime brick (probably) to the coming autumn and winter (but possibly also to an earlier possible date). ).
In the last few weeks I have started another series of preliminary tests at the same time. This series of preliminary tests is about my intention one day - if possible due to the overall conditions - to reconstruct the so-called Sabu disc.
Often referred to as an "Out Of Place Artifact" (OOP Artifact), the Sabu Disk is an ancient Egyptian work piece with very special characteristics. In particular, the thin-walled and filigree nature of the Sabu disc is a major challenge with regard to the processing options for soft stone (but of course nothing generally impossible for a suitably qualified or experienced craftsman, otherwise the Sabu disc would not exist).
For the reasons mentioned, I will therefore make this series of topics a little more dynamic and first devote myself to the preliminary test on the subject of the one day planned reconstruction of the Sabu disc and insert interim thrusts on the previous series of preliminary tests (small vase with a lid made of Baumberger sandlimestone) as soon as there is news on this.
In the series of preliminary tests that have started, I am initially not concerned with the planned production of a copy of the Sabu disc that is as true to the original as possible (scaled down) but with a general testing of the possibilities of "turning off" structures that are as filigree as possible in the style of the Sabu disc on a workpiece made of soft stone that is attached to a two-point bearing axle " to produce.
QUELLEN / Sources:
Bibliografische Angaben für „Sabu-Scheibe“
Seitentitel: Sabu-Scheibe
Herausgeber: Wikipedia – Die freie Enzyklopädie.
Autor(en): Wikipedia-Autoren, siehe Versionsgeschichte
Datum der letzten Bearbeitung: 1. März 2023, 00:38 UTC
Versions-ID der Seite: 231356332
Permanentlink: https://de.wikipedia.org/w/index.php?ti ... =231356332
Datum des Abrufs: 6. Juli 2023, 17:33 UTC
. . .
Vorbereiteter Rohling für Vorversuch zur Rekonstruktion der Sabuscheibe.
Bildrechte: (C) me. Vinzenz Maria Hoppe, 2023
IMG:
A blank made from Baumberger sandlimestone for the planned series of preliminary tests for the one day planned reconstruction of the Sabu disc.
. . .
Preliminary test for the planned reconstruction of the Sabu disc: Production of an approximation model from Baumberger sandlimestone
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HAFTUNGSAUSSCHLUSS FÜR INHALTE:
Eventuell erfolgende inhaltliche Änderungen und Korrekturen können jederzeit durch mich erfolgen und werden von mir nicht jeweils explizit dokumentiert.
Trotz sorgfältiger Prüfung durch mich als Ersteller von Inhalten gilt: Die Nutzung der sämtlichen hier erstellten inhalte erfolgt ausschließlich auf eigenenes Risiko (gilt insbesondere für entgangenen Gewinn und für sämtliche vorstellbaren, aus der Rezipierung und Nutzung der hier präsentierten inhalte möglichen Folgen)! Inhaltliche Fehler, Logikfehler und z.B. Übersetzungsfehler in der Dokumentation sind trotz sorgfältiger Prüfung des Verfassers nicht ausgeschlossen.
Im Zusammenhang mit dieser Dokumentation verwendete Internetadressen im Rahmen der Zitierpflicht und des wissenschaftlichen Arbeitens stellen per Definiton ausdrücklich keine Linkempfehlungen dar: Die bloße Anführung von Internetadressen als Quellen im Zusammenhang mit dieser Gesamt-Dokumentation (die in ihrer Abfolge durch Posts anderer Forenmitglieder unterbrochen werden kann) bedeutet nicht zwangsläufig, dass der Verfasser die sämtlichen Inhalte von zitierten Internetadressen (dazu gehören z.B. Ansichten von Autoren und deren verbreitete Theorien) automatisch teilt. Deshalb gilt: Jede Verwendung der im Zusammenhang mit dieser Gesamtdokumentation zitierten Internetquellen ausschließlich auf eigenes Risiko und frei von jeglicher Haftung seitens des Verfassers.
[HAFTUNGSAUSSCHLUSS ENDE]
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DISCLAIMER FOR CONTENT:
Any changes and corrections to the content that may occur can be made by me at any time and are not explicitly documented by me in each case.
Despite careful examination by me as the creator of specific content, the following applies: the use of all content created here by me as the author is exclusively at your own risk (applies in particular to lost profit and to all conceivable consequences of the reception and use of the content presented here)! Errors in content, logic errors and, for example, translation errors in the documentation cannot be ruled out despite careful examination by the author.
Internet addresses used in connection with this documentation in the context of the citation obligation and scientific work are by definition expressly no link recommendations: The mere citing of Internet addresses as sources in connection with this overall documentation (the sequence of which can be interrupted by posts from other forum members) does not necessarily mean that the author has accepted the entire content of cited Internet addresses (this includes, for example, views of authors and their widespread theories) automatically shares. Therefore, the following applies: Any use of the Internet sources cited in connection with this complete documentation is exclusively at your own risk and free of any liability on the part of the author.)
[END OF DISCLAIMER]
. . .
Preliminary test for the planned reconstruction of the Sabu disc: Production of an approximation model from Baumberger sand-lime brick
[Addendum from 07/23/2023:]
Since the effort of the preliminary test to prepare the reconstruction of the Sabu disc would be extremely high according to my expectations and requirements, I decided afterwards to only do the documentation of this interesting stone processing project in flashs. The following articles will be (and were) changed accordingly without me explicitly going into each individual point of the changes. Content was (and will be) removed by me in places to a large extent.
[addendum end]
. . .
There is no doubt that the ancient Egyptians had the possibilities and skills to turn various stone materials using two-point axis bearing (off) turning processing.
Special exhibits in the Egyptian Museum in Cairo give a small insight into the craftsmanship in this area [see source].
The purpose of this preliminary test is not to show that natural stone can be turned externally (which has long been known and has been practiced for thousands of years): this series of preliminary tests is particularly about narrowing down the most likely methods with which the ancient Egyptians turned stone and about the simplest possible apparatuses that can be derived from this (for which no direct models can be found to this day).
The documentation of the preliminary test, which has now progressed successfully, has been significantly delayed due to another heat wave and extreme weather.
Content will be created as soon as I can.
I will upload more photos as soon as possible.
Mehr dazu später.
QUELLEN / Sources:
Homepage: Spirit&Stone
Seitenbetreiber: unbekannt, kanadische Homepage
http://www.theglobaleducationproject.or ... dfact3.php
Datum und Zeitpunkt des Zugriffs: 15.07.2023, 10.09 MEZ.
. . .
Update on the current stone processing project:
Up until now, the documentation of the project has not been possible relatively simultaneously with the progress of the project. The project is currently in a critical stage, in a positive sense, in terms of handicraft aspects, which demands my full attention.
I will therefore not upload any further documentation on the project until 21.07.23 at the earliest.
From the outset, I avoided filming the crafting processes in this project and focused on photography, because otherwise the overall effort would have been too extreme.
The Sabu disc is neither a component nor a model of a drive unit nor a ship's propeller: it is a poorly crafted aesthetic vessel as a result of high craftsmanship.
. . .
- CONTINUATION -
[Addendum from 07/23/2023:]
Since the effort of the preliminary test to document my preparations for the reconstruction of the Sabu disc would be extremely great according to my expectations and requirements, I decided afterwards to only do the documentation of this interesting stone processing project in a flash. The following articles will be (and were) changed accordingly without me explicitly going into each individual point of the changes. Content was (and will be) removed by me in places to a large extent.
[addendum end]
The project is now relatively close to the final work steps, which will still take a certain amount of time due to the filigree work involved. This is also because the workpiece is now becoming more and more sensitive to damage and is therefore in the most critical processing phases of the entire project.
At this point, highlights of the most important processing phases or processing steps of the original Baumberger sandlimestone blank, which have resulted from the preliminary test so far: I do not provide a detailed documentation of the work steps carried out in this stone processing project due to the enormous effort required for this.
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (1, 2023 / IMG 1 - 14))
SOURCE: https://youtu.be/GIQUnfJ7BOI?si=dOV0_2oZ3I-Dh4OR
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (1).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 1: Important processing step in the preliminary test:
"Shafting" the blank made of Baumberger sandlimestone on a softwood axis.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (2).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 2: Important processing step in the preliminary test:
Production of the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (3).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 3: Important processing step in the preliminary test:
First removal of excess stone material on the roughly hewn blank to create a round shape that is as precise as possible.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (4).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 4: Important processing step in the preliminary test:
Making a wooden axle box in the style of a simple "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (5).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 5: Important processing step in the preliminary test:
First attempts to work and shape the blank placed in the lathe with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (6).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 6: Important processing step in the preliminary test:
First successful turning and scraping machining of the blank placed in the lathe with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (7).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 7: Important processing step in the preliminary test:
First successful turning and scraping work on a relatively precise peripheral surface and work on a relatively precise, cleanly worked edge on the round body of the blank placed in the lathe with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (8).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 8: Important processing step in the preliminary test:
Successful removal of the ridges that had formed on the side surface of the blank, which was created by turning and scratching, and fundamental leveling of the side surface with tools made of flint and copper and using sharp-edged edges of a cast concrete slab.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (9).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 9: Important processing step in the preliminary test:
Successful shortening of the axis of the "shafted" blank and correspondingly precise conversion of the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (10).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 10: Important processing step in the preliminary test:
Successful lathing, scraping, working on a second side surface and gradual shaping into the "drum body" of the blank that was placed in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (11).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 11: Important processing step in the preliminary test: Altogether successful turning and scraping plan leveling of the side surfaces of the blank placed in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (12).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 12: Important processing step in the preliminary test:
Creation of an outline (here as a side view of a slate shingle) to determine and plan the proportions and dimensions of the planned workpiece as closely as possible (here necessarily interpreted freely in terms of design and material) to the shape and proportions of the Sabu disc.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (13).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 13: Important processing step in the preliminary test:
Twisting scratch-scraping transfer of dimensions and proportions in relation to the original; the sabu disc; upset outline for the planned workpiece (marking) on the blank placed in the "lathe" with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (14).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 14: Important processing step in the preliminary test:
turning and scraping reduction of the blank placed in the "lathe" with flint and copper tools according to the proportions and dimensions planned in the outline.
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (1, 2023 / IMG 1 - 14))
SOURCE: https://youtu.be/752sTW3xGWM?si=skxBmxxRnRBPevSb
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (15).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 15: Important processing step in the preliminary test: First successful turning and scraping application of the underside of the planned workpiece to the blank placed in the "lathe" with flint and copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (16).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 16: Important processing step in the preliminary test:
Turning, scraping, fine working on the back of the planned workpiece on the blank placed in the "lathe" with tools and aids (measuring tool of copper) made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (17).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 17: Important processing step in the preliminary test:
Turning and scraping application of the rounded peripheral edge to the upper side of the planned workpiece with flint and copper tools on the blank placed in the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (18).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 18: Important processing step in the preliminary test:
Turning and scratch-scraping application of the upper side of the planned workpiece with transfer of important dimensions with flint and copper tools on the blank placed in the "lathe".
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (19).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 19: Important processing step in the preliminary test:
Turning, scraping transfer of important dimensions and proportions to the upper side of the blank clamped in the "lathe" and first application of the flattening for the development of the ring-segment-shaped decorative elements with perforations on the blank with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (20).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 20: Important processing step in the preliminary test:
Scratch-scraping and pecking of the ring-segment-shaped decorative elements on the blank clamped in the "lathe" with tools made of flint and copper.
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[Source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (21).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 21: Important processing step in the preliminary test:
Scratching and picking of the planned thin-walled, bowl-shaped hollowing out of the workpiece with a floral ornamental look is applied to the blank clamped in the "lathe" with tools made of flint and copper.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (22).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 22: Important processing step in the preliminary test:
The current processing status of the workpiece with scratch-scraping and picking planned thin-walled bowl-shaped hollowing out of the workpiece with floral decorative optics on the blank clamped in the "lathe" with tools made of flint and copper. The first turning of the inner thin-walled cylindrical element with tools made of flint and primarily copper can also be seen here on the workpiece.
At this point in the processing progress, the result is already a complete success. This even if the workpiece were to be seriously damaged or even destroyed during processing or transport: for a first approach to this special arts and crafts topic, all the important questions for me have already been answered. The end result of machining the workpiece is ultimately a question of experience and skill as well as patience as well as the material.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (23).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 23: Important processing step in the preliminary test:
Conforming scraping deepening of the rough formwork of blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (24).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 24: Important processing step in the preliminary test:
Scratch-scraping re-turning and deepening of the drum-shaped turning in the center of the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (25).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 25: Important processing step in the preliminary test: Important processing step in the preliminary test: Scratch-scratching, fine first shaping of the outside of one of the three lobes to be worked out on the blank (here in comparison to the Sabu disc as a template due to the selected size and dimensioning of the workpiece with greatly shortened lobes).
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (26).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 26: Important processing step in the preliminary test:
First scratch-scraping undercutting of one of the lobes on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (27).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 27: Important processing step in the preliminary test:
First rough donned steep groove; below the extended lobes as a connecting element between the inner side wall and inner "bottom surface" of the blank as a planned thin-walled stone with tools made of copper. The current processing status of the blank made of Baumberger sandlimestone.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (28).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 28: Important processing step in the preliminary test:
Equal expansion of the undercutting of all lobes on the workpiece and adjustment of the "floor level" on the blank with copper tools.
. . .
- CONTINUATION -
DOCUMENTING PICTURE SHEETS AS SOURCES:
picture sheet (3, 2023 / IMG 29 - 42)
SOURCE: https://youtu.be/pIvSfAQLQSw?si=Zcf62VhdQ-vDLjsq
content of picture sheet / description of pictures:
[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (29).jpg]
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 29: Important processing step in the preliminary test:
Partial turning of the drum-shaped middle section on the Baumberger sandlimestone blank again in refer to the design of the Sabu disk using copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (30).jpg
Bildrechte: / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 30: Important processing step in the preliminary test:
Current processing status of the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (31).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 31: Making a simple caliper gauge from a section of bent wood and home-made thin and sharpened bamboo sticks: the curved round section was made from the handle of a hardwood walking stick, the round section was sawn to size with a modern hacksaw, the through-holes were made with a cordless screwdriver with modern drill bits: one of the bamboo stick sections was pressed into one of the holes drilled in the round wood (fixed adjustment), another was designed to be movable: this resulted in a reasonably exact "pointing device" with relatively little effort. By marking the movable bamboo stick accordingly, a fixed measuring depth could be set with the dotting device, which was estimated at around 4 to 5 mm (I will measure it later).
Making a simple paint from powdered modern commercially available charcoal tablets, fine powder from the machined blank of Baumberger sandlimestone and tap water.
Making a simple little brush from a section of the self-made bamboo sticks: one end of the bamboo stick was frayed flattened and then cut to size with a pocket knife.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (32).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 32: Measuring determination of the wall thickness of the vessel bottom to be precisely machined on the blank with the self-made puncturing device.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (33).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 33: First scratch-scraping application of puncturing points to determine the wall thickness to be worked on of the vessel bottom on the blank with copper tools: for this purpose, a measuring point to be applied was reworked and measured again with the self-made puncturing device until the desired measuring depth was reached.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (34).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 34: Mark the first dot with the paint you made yourself and a small bamboo brush on the blank.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (35).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 35: Processing status of the blank with many different measuring points set and marked with the self-made paint and small bamboo brush.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (36).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 36: Scraping away the excess sand-lime brick material ("Bossen") with copper tools on the blank: the marked dotted measuring points serve as a guide: by leveling the connection of the measuring points, the wall thickness at the bottom of the vessel to be manufactured is relatively exactly uniform.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (37).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 37: Processing status of the scraping leveling of the bottom of the vessel on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (38).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 38: Scratch-scraping fine finishing of the wreath-like vessel rim on a segment of the blank, worked to the desired wall thickness, with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (39).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 39: Scratch-scraping fine reworking of the wreath-like vessel rim on a segment of the blank, worked to the desired wall thickness, with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (40).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 40: Scratch-scraping removal of the sandlimestone material ("Bossen") lying between the applied lobe and the drum-shaped middle part between two segments worked to the desired wall thickness for the purpose of connecting the bottom level of the vessel to be produced on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (41).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 41: Scratch-scraping application and finishing of the steep groove between the planned bottom of the vessel and the steeply rising wall of the vessel under a lob on the blank with copper tools.
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[source: Vorversuch Rekonstruktion Sabuscheibe Zwischeneinschub zur (Dokumentation (42).jpg]
Bildrechte / Copyright: (C) me. Vinzenz Maria Hoppe, 2023
IMG 42: First rough scratch-scraping application and finishing of the steep groove (connecting area between the bottom of the vessel and the part of the rising wall of the vessel) on the blank with copper tools.
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