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 ...

This sounded like exactly what I wanted, but unfortunately, acetone doesn’t have this same effect on PLA. After some more research I found people suggesting Weld-On #16, an acrylic adhesive that ...