[Print Practical] thought it just might be possible to 3D print custom molds at ... That worked like a charm, with the over-mold standing up to a saltwater bath with no signs of leaking.

As it turns out, 3D printing can help in that regard, with injection molding company [APSX] has given us a look at how it printed injection molds for its APSX-PIM machine. The concept is simple ...