once I had figured out how to print my own “glue” sticks out of PLA. The result is a bit like a plus-sized 3D-printing pen, but much simpler and capable of much heavier extrusion. But it wasn ...

Glue sticks are rollable sticks of glue that are safe enough to use on photographs and limit the mess of doing craft projects with kids. When the cap is left off of a glue stick, however, it tends to ...