Soto Melendez used a 3D printer to make Glock switches at his Park Hills home and another man sold the devices, prosecutors ...

I had another major change to make. My printers have a non-standard filament sensor that detects the filament moving. That way, it can detect not only broken filaments but jammed filaments ...

[Chuck] built a small PCB to help level his 3D printer and he shares the details in the video you can see below. The idea is simple, the nozzle pushes down on the PCB which has a tact switch ...