@陆 is there a small tube inside the hotend? It seems like I pulled one out of there but the bowden tube don't fit. It don't matter how hard I push it ain't going into the hotend that far. Mine dont seem to go past the coupler piece. What sides is it? Was it maybe built up filament? It seems to be printing without it.

I am having problems with my printer not putting out any filament through the extruder. I changed the nozzle and that didn't seem to help. It feeds it up to the extruder and then it starts making a clicking noise and nothing coming out. Could I have a bad bowden tube? Any ideas on what to try would be greatly appreciated. Thank you Mike