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 ...

This generally leads to said glue stick falling out as soon as you move the pen on the first couple of occasions you try it. It also takes a few pumps of the trigger to get things going ...