That's really astonishing! Why can't we 3-D print molds that are good for 10 or 100 shots?
3D printing price-competitive with injection molding to qty 10k at @voodoomfg; game changer http://blog.voodoomfg.com/2017/08/01/summer-sale-50-off-all-direct-print-orders-with-3-day-production/ … (Via The Prepared)https://twitter.com/pencerw/status/894363505629028352 …
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3D printing steel is extraordinarily expensive and you'd end up with serious mold marks without manual labor for hand finishing
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and you'd have serious surface area so I'd have demolding concerns. Like a lightweight mold can be a few hundred pounds of metal
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Essentially, this is so inconceivable you'd just never do it
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"Cheap/few use" molds can be done in aluminum but you're still looking at qtyies significantly higher than 10 to justify mfg cost
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If I understand correctly, we have to use metals because injection molding is very high pressure? What about lower-pressure mold processes?
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Maybe the disadvantage is that no lower-pressure mold process can equal the surface finish of FDM?
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I mean clearly vacuum forming and blow molding can be done with softer mold materials, as long as they don't melt or stick (?)
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