I've just built my first 3D printer. It uses a Bowden setup.
When I try to print the extruder starts fine, but after a few seconds the extruder motor start skipping and the nozzle is jammed.
I tried a cold pull, but it didn't help. I removed the PTFE tube and tried to push the filament with my hand, it works but at the start I need the push harder but after it flows fine. But if I reinstall the Bowden setup, it works fine for a few minutes, but after a few seconds it starts again.
Note I am using silver PLA at 200-205 °C. I tried to raise the temperature to 215 °C, but it also jammed, and the filament what after I pushed out was black (it is a new hotend and I never used black filament before), like it was burned (if it is possible).