Injection molding is the obvious onward step from 3D printing when the making of a few plastic ... he proceeds to machine the mold itself from a block of aluminium. It’s a basic introduction ...

Researchers led by a team at the University of Tokyo have turned concrete from a demolished school building and carbon dioxide (CO 2) from the air into new blocks strong enough to build a house with.

In [Erics] case, it’s impossible to use a simple planar split line, so he mounts the master part on a block of wood and ... While the entire mold-making and molding process is time-consuming ...

many car body parts are made from a mold, and these are just a few examples. Initiating a business that specializes in making manufacturing molds for clients is not a hard business to establish.