Filament joint

Simple joint for recycled PET filament. I use it to connect segments of filament got from the Petalot machine instead of welding them, which proved to be faulty too often. The holes in joint are optimized to hold the filament just right to stay in place while on spool and to disconnect before entering the extruder/PTFE tube. Then I manually insert the next filament segment (it is needed after approx. an hour of printing). Before, I had problems during winding the filament on the spools (the welds failed very often) and sometimes, when the weld failed during printing, the filament got easily tangled on the spool. Since I use these filament joints, I wind up the spool easily and I neved had a failed print or entangled filament.