Custom-engineered metal forms that incorporate special features such as dowel brackets and extensions to pour deeper edges have simplified the job of paving an 18-inch-thick concrete apron that ...

With the concrete industry moving in the "green ... and then pinned together with a metal pin to hold the forms together. This metal pin is easier to drive into harder ground, Del Greco says.

usually as a lost-PLA former in metal casting. That’s not the only use of the technique though, and perhaps one of the simplest is to use a 3D-printed mould for casting concrete. It’s what ...