h a l f b a k e r yIt's not a thing. It will be a thing.
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Turn the toy that lets you create 3D impressions of object
into a 3D printer alternative.
- Upload your 3D model.
- Machine sets each pin into place
- Pour molten material is poured inside the hollow area
- Wait for it to harden.
[link]
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It's going to be a one time use device - and you'll never get the two parted. Other than that, it's a great idea. |
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Those objections are solvable, [norm]. You just
need the gap between pins to be small enough that
the molding material is viscous enough to not flow
(significantly) between them, and a retract stroke
that is strong enough to pull them out of whatever
molded material remains. |
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My concern would be with //- Machine sets each pin
into place//. How are you doing that in anything
resembling an economic manner? |
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I thought this is half bakery. |
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I like that side way stripe idea. It could be used to
make much larger molds. |
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The smaller the pins, the better. Smaller and smaller converges on a smooth sheet. Could one use a sheet? You could have the machine pull it magnetically into shape. That would limit the depth of the mold at any one place but it would be much smoother than pins would allow. |
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Plus the sheet could have a nonstick surface and normzone would nod approvingly. |
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The shapes you could make would be limited: no undercuts, no hollow spaces, and a big flat* bottom face. |
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*flat, here meaning 'sunken, irregular shrink cavity' |
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I think you could tweak this idea and get a workable vacuum-forming system. |
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This is good. You could have a manual option where the pins are locked into position after pressing it against another object and then swirling a fast-set liquid on the inside. For hollow objects like masks. |
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