I3 Aluminum PLA Jamming

[Jaytronics]

I have tried for days now to be able to extrude reliably. I have 3mm filament through a 0.5mm nozzle. I can heat the hot end upto 210 degrees and extrude 100mm via Repetier without problem. If I then leave it for a few seconds and try to extrude another 100mm the extrude jams up and the stepper just clicks. I have tried all the suggestions on this forum and it still jams.

[Mark]

how's the driver voltage, have you checked it?

[Jaytronics]

Driver voltage is at 1.2 v

[Mark]

The voltage seems normal, but suggest you lower it down to about 1.0V.
And how aobut the PTFE tube inside the hotend threaded tube, could it be damaged?

[Jaytronics]

Hi Mark,

There is no PTFE liner in the hotend. I assumed all 3mm hotends had no PTFE ??

[Mark]

Oh yeah, you're right, there's no PTFE tube inside the 3mm hotend. That's weird...how about the filament, could it has a quallity issue?