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Thread: Creating molds from 3D Printing?
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01-22-2014, 07:31 PM #1
Thank you very much.
My 3D models (most them) are complex. So I'm thinking that a silicon mold will be the only way to get a good copy. navkram, just for curiosity. How many copies your silicon mold support with a sculpture with 20 cm tall? Polyester, polyurethane, vynilester Resin?
Thanks again. Excuse my english.
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01-23-2014, 02:46 AM #2
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You should be able to get a couple 100 copies depending on how careful you are with the molds and how well you take care of them (mold release) i am using a 2 part urethane air cure resin from alumilite.com
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01-25-2014, 11:19 AM #3
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01-25-2014, 04:39 PM #4
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I imagine some of the flexible materials the Objet uses could work as molds directly. But it would probably be more cost-effective to print a positive form and make molds from it, since you could make multiple molds from each model. I like the idea of 3D-printed mold boxes, though; that could definitely minimize the use of expensive mold rubber.
Andrew Werby
www.computersculpture.com
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01-25-2014, 05:33 PM #5
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01-25-2014, 08:08 PM #6
It's a interresting point. If this soft material from objet has a good mechanical and chemical resistance like as silicon rubber. Will be a great option. Otherwise. Why not make a silicon copy from 3d printed mold
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01-28-2014, 10:20 AM #7
Check out my guide here on how to make a cheap waste mold and transferring your 3D print to wax for further finishing.
http://www.statueforum.com/showthread.php?t=142321Last edited by MeoWorks; 01-28-2014 at 10:22 AM.
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02-03-2014, 03:39 AM #8
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02-03-2014, 01:31 PM #9
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If you really can't get proper 2-component mold rubber, silicone caulk can work as an inferior substitute. But as Navkram points out, the substance is too thick to avoid entraining air next to the surface of the model. It's better to at least use real silicone mold rubber as a first coat, painted on and allowed to cure, to get the detail, before applying caulk as a second coat (although you can also use a thickened mixture of the 2-component rubber). It not only picks up the details without bubbles, but releases much better than the caulk, which was formulated for adhesion, not removal.
Andrew Werby
Juxtamorph.com
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02-03-2014, 06:53 AM #10
Or you can just print the mold directly with silicone.
Please explain to me how to...
05-17-2024, 12:15 PM in 3D Printer Parts, Filament & Materials