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Old 2017-04-01, 10:22 PM   #4
Clay
"I've done better and got over it."
 
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Murray, KY
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Sketchup is a free 3d modeling program.

New mold creation and duplication for the DIY crowd is at the moment limited by cost of equipment. Basically, make a design in a CAD program like the above, and then have it printed by shapeways or some service like it if you don't have your own 3d printer.

The problem with making silicone molds and casting parts out of resin is that they're not injection molded like factory stuff. In other words, you're limited to five sides of a cube since you won't get any detail on the surface you're pouring the resin into.
 
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