Now the folks at FormLabs have turned the whole ‘casting metal and 3D printer’ thing on its head: they’re printing sacrificial molds to cast pewter. There are two techniques demonstrated in ...

Urethane casting offers high accuracy as its major characteristic. The procedure starts by making silicone molds from master patterns which usually originate from three-dimensional printing ...

[Chris] puts his filled molds into ... depending on the urethane mixture used. After everything is solidified, the mold can easily be taken apart to reveal the newly cast wheel.