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 Replies: 12 / Views: 2,130 |
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New Member
Romania
2 Posts |
Hello!
I hope this is a good forum to get some help to model a coin.
I have a simple Jpeg picture, and I have to make a bas relief model out of it, for a coin press.
Can someone help me to give some instructions where to start?
I mean, is there a special software to create a bas relief from a photo to make a coin?
Software that mints or coin press companies use?
Or forums dedicated only for coin designing, carving and pressing?
Any help is welcome.
Thank you in advance.
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Bedrock of the Community
 United States
12477 Posts |
 Can you be more specific about what you wish to accomplish and what coin(s)? In Memory of Crazyb0 12-26-1951 to 7-27-2020
In Memory of Tootallious 3-31-1964 to 4-15-2020
In Memory of T-BOP 10-12-1949 to 1-19-2024
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New Member
 Romania
2 Posts |
Thank you spruett001 for your warm welcome greeting and for your swift reply. In the attached file is the picture of the castle.  From this image I have to make a bas relief. From the relief then I will have to make a negative for a coin press. And I don't know what procedure fits the best to achieve the following:  |
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Valued Member
Russian Federation
172 Posts |
Hi, Lack. They use very special tools and soft and it is very expensive procedure. http://absi.iqservices.com/htmlfiles/MMaking.htmBetter you need to try ask community where works with metall. Displace modifier in 3D Max can help to obtain 3d file from your pic. Then you can print it in clay etc...  Edited by Justwalking
01/28/2019 10:56 am
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Pillar of the Community
United States
6514 Posts |
Check out my counterstamped Lincoln Cent collection: http://goccf.com/t/303507Edited by chafemasterj
01/28/2019 10:42 am
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Moderator
 United States
188770 Posts |
to the Community! |
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Pillar of the Community
United States
4212 Posts |
I would imagine, the creators of the CCF medallion, might offer some insight.
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Pillar of the Community
United States
4038 Posts |
Are you asking if there is software and a process that will automatically take a 2D picture and make a 3D bas relief from it? The answer is of course "no" since the software has no information about depth/relief.
The traditional way of doing this is to make a 2D drawing on a larger than life plaque representing the coin. Then the relief is carved (by hand) until it represents a proper balanced relief acceptable to both the artist and to the coiner. This plaque is then reduced to the correct size through a reduction lathe, resulting in a Hub. This hub is then pressed into a metal blank to create a Die which could be used to strike coins.
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Valued Member
Russian Federation
172 Posts |
Ray, it is possible to create 3d surfase from 2d grayscale picture whithout handcraft works.
At least there special script for Autodesk Fusion 360 programm.
All it does is translate the value (level of lightness or darkness) of a bitmap image to the height of a point on a mesh surface. The white parts of an image will be the highest points, and the black parts will be the lowest points. This script will work with any photo.
But don't know if coin's sculptors use such modern tools.
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Bedrock of the Community
Australia
21788 Posts |
Very interesting topic.
I have read a small amount on die manufacturing. I am always keen to further educate myself on this subject.
It is best that we are all well informed, so that we can all learn a lot more about how to identify particular die characteristics from the methods used to produce them.
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Pillar of the Community
United States
4038 Posts |
JW...I think he's looking for more than just a simple rendered texture, but indeed if that's all he wants then the software can do it. In the example you show, notice the field (sky above/behind the towers) is at a higher relief than parts of the towers, and the clouds are even higher. This is the problem with such rendering programs, since they have no idea of global relief, only the local variations as indicated/interpreted by shadows and highlights. This can certainly give an "indication" of 3D but I don't think it would be suitable for coinage..Ray
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Valued Member
Russian Federation
172 Posts |
That was not example of any CAD software, Ray. It was just simple emboss procedure of freeware very old photoenhancer prog. )
Yes, needs to prepare bitmap first for using CAD, but we talking theoretically how to skip traditional sculpture hands work.
Sure classic coinage still use old way and technologies after centuries of experience.
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Pillar of the Community
United States
4038 Posts |
Yes, the old ways must be used in order to get a realistic result. AI is not quite far enough along to be able to render bas reliefs with accuracy and style. I don't doubt that it could get there, but it is doubtful the folks doing AI care much about the subject.
Contact me for photographic equipment or visit my home page at: http://macrocoins.com |
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Replies: 12 / Views: 2,130 |
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Posted 01/28/2019 04:06 am
