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 Replies: 18 / Views: 2,446 |
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Pillar of the Community
United States
586 Posts |
Okay. Hear me out. Pictures are flat. Often crappy missed depth and hands on which is pretty much the only way I learn things. 3d prints of actual coin errors. Doubke dies. Strike throughs. Rpm. Sell as a learning guide. ANA example or two of most common type errors.. I should trademark this before posting |
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Bedrock of the Community
United States
94367 Posts |
What are you talking about?  |
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Bedrock of the Community
United States
19126 Posts |
So, you're saying a way to view coin images in stereo--aka 3 dimensions? A stereo camera would work. Better yet, scan the coin at a very high resolution using Lidar methods/technology. Then, the image could be manipulated (positioned and viewed) in any number of ways. Alas, Lidar scanning is not cheap. Lidar -- https://en.wikipedia.org/wiki/Lidar |
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Rest in Peace
United States
18456 Posts |
ijn1944 , how the heck did you come across that from OP's post ? |
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Bedrock of the Community
 United States
25004 Posts |
Kerry, the problem is that phones and computer monitors all use 2D display. How do you propose overcoming this limitation?
Inordinately fascinated by bits of metal with strange markings and figures
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Valued Member
United States
81 Posts |
I hope you are not talking about using a 3d printer to make a replica, that would be illegal unless the coin was marked as such.
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Pillar of the Community
 Canada
1775 Posts |
I think he is talking about 3D printing scanned error coins. Are 3D printers that accurate yet?  "We are poor little lambs...who have lost our way...Baa...Baa...Baa"
In memory of those members who left us too soon...
In memory of Tootallious March 31, 1964 - April 15, 2020
In memory of crazyb0 July 27 2020. RIP.
In memory of T-BOP Oct. 12, 1949 - Jan. 19, 2024
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Pillar of the Community
 United States
586 Posts |
Yes I'm talking about replicas. They could be marked. Lime green whatever. And sold as singles or sets. Learning disabilities etc.. hands on learning tool
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Pillar of the Community
United States
586 Posts |
Specifically error replicas so think of how many less times you would have to comment md or damage on posts
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Pillar of the Community
United States
4691 Posts |
If he is referring to 3D printing, I doubt he understands the technology.
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Pillar of the Community
United States
2281 Posts |
I always enjoy your posts, keep 'em coming  You realize when you know how to think, it empowers you far beyond those who know only what to think.
-Neil deGrasse Tyson
Edited by NumismaticsFTW
11/28/2022 6:48 pm
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Moderator
Australia
16809 Posts |
I don't think 3-D printers can work in metal at coin-sized scale yet. When they can, I think it would be the death-knell for coin collecting due to the influx of easy counterfeits. You'd need to make the models super-sized to retain the fine details, which might be great for some in-person demonstrations like at a seminar or coin club meeting, but kind of inconvenient for personal use. If you're wanting to make 1:1 sized replicas of coins, there are cheaper and easier methods than 3-D printing. Old-fashioned pressure casting, for example, would work well enough for the purpose. You'd lose a little detail, but not as much as a 3-D printer. There's the whole "counterfeit coins" angle to consider. To sell them legally, they would need to be stamped "COPY" to comply with the Hobby Protection Act. You couldn't sell them on ebay due to ebay's blanket ban on copies and replicas. Plus, of course, the forum would be flooded for years to come by people who found grampa's set of replica error coins and thought they were real (no matter how carefully they were marked otherwise). Finally, you're kind of missing the point on why so many of these people are coming onto the forum lately with their non-error coins. Many of them are get-rich-quick free-money-for-nothing kinds of folks, who see on the news or YouTube or wherever somebody making a fortune selling error coins, and they want a piece of the action. These people are not interested in "learning tools" and certainly aren't going to be wanting to buy sets of replica errors, to improve their error collecting - they're trying to find a way to make free money, without having to work hard, think hard or spend money first. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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Bedrock of the Community
United States
94367 Posts |
Good stuff, thanks. Kinda scary.
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Pillar of the Community
United States
756 Posts |
before coin photography became viable at home people would make foil pressing of their coins to share with other collectors. here are some pressings that I have in my collection.  the gallery mint used to offer seminars on error coins. they would show you how they were made and let you make some yourself. here are some error tokens from their 2002 class at the ANA summer seminar. I made some of them myself   Edited by CarrsCoins
11/28/2022 8:24 pm
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Pillar of the Community
United States
4691 Posts |
Quote:
I don't think 3-D printers can work in metal at coin-sized scale yet Yes they can. What most people don't understand is that a 3-D printer needs a CAD model to print from. A high fidelity CAD model requires a significant effort. You don't just take a picture and make a 3-D model. Edited by jimbucks
11/28/2022 8:33 pm
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Bedrock of the Community
United States
19126 Posts |
Agree with jimbucks. Gotta build that CAD model--not a trivial endeavor.
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Replies: 18 / Views: 2,446 |
Posted 11/28/2022 5:05 pm
