[Chris] made his own extruder out of a hot glue gun and made it so simple we’re surprised we haven’t seen this build before. The basic operations of a plastic extruder – pushing a rod of ...

When is a hot glue stick not a hot glue stick? When it’s PLA, of course! A glue gun that dispenses molten PLA instead of hot glue turned out to be a handy tool for joining 3D-printed objects ...