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Tom Mazanec
Joined: 11 Feb 2016
Posts: 139
Location: Twinsburg, Ohio
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Peter Lemkin
Joined: 18 Nov 2016
Posts: 398
Location: Prague
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Posted: Jan 03, 2018 00:22 Post subject: Re: 3D printing in collecting |
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Yeah, That looks like a great idea, BUT he has yet to give even general ideas of how he makes the depression [or raised surfaces] to fit the specimen. I could see someone developing a way to capture an 3D image of the bottom surface [shape, spacing and distance]. and then have a computer translate that into instructions to the printer - but until then, it seems like each base would be a LOT of work/time. The collector would still have to determine what the final result should look like, which features/sides/angles would display it best and where the center of gravity would be. If developed a bit further, this could be great for displays. The one he shows has a hollowed out base, but a base with built up areas holding the specimen seem equally possible.
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vic rzonca
Joined: 18 Nov 2008
Posts: 820
Location: MA
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Posted: Jan 03, 2018 09:04 Post subject: Re: 3D printing in collecting |
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Not sure if I'm giving out trade secrets here, but here goes. 3D Laser Scanning is a non-contact, non-destructive technology that digitally captures the shape of physical objects using a line of laser light. 3D laser scanners create “point clouds” of data from the surface of an object. In other words, 3D laser scanning is a way to capture a physical object’s exact size and shape into the computer world as a digital 3-dimensional representation. One technique is, using a very soft compressional foam, you take an impression of the bottom of the specimen, in your preferred orientation. You then scan that impression and use that data set to CNC router into a plastic base or whatever, reproducing that shape. It seems you could use that same "point cloud" to drive a 3D printer.
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