JohnSL - Random Products | Semi Automatic Ejector Pins @JohnSL | Uploaded February 2022 | Updated October 2024, 2 hours ago.
Semi-automatic ejector pins allow making plastic injection molded parts that would otherwise be very hard, if not impossible, to extract from the mold. This is a mold I made several years ago for my Travin TP-1.

Mark Presling's Channel: youtube.com/channel/UCYfDX1Gno-PuJ-QWLbH09Sg