As usual followed the instructions at K2 wiki This time printing ABS, clear, repeat!!!
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How fast are you trying to print and what temp???
I’ve had this before with ABS and a lot more with PETG
For the PETG I was trying to print at 240c and found the temp was way too low and would jam and so I’m printing at 270c using the default high quality profile in Creality slicer.
However 3D4Everyone on YouTube mentioned that the spring in the CFS feeder may be too tight and is causing the filament to snag the filament on occasion so cutting off 1 ring from it is enough to fix the issue. I have tried it on one of my CFSs and so far I haven’t had the issue return.
Video link below (please note I’m NOT affiliated)
There was
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I am getting repeated extruder drive filament jams as per the OPs photo while printing white PETG at 250-255C. There are no problems with printing black PETG. Am experimenting with higher temps but so far 255 and 260 have the same problem. Appreciate any comments on this problem. EDIT: finally it seems to print OK at 265C YAY!
However, the issue I want to raise is what does one do to recover from such a blockage. What I have been doing is opening the extruder drive and cutting off the blockage and then systematically removing the 2 teflon tubes back to the CFS and cutting away filament. This reduces the amount of filament that has to be dragged back through the CFS. While the tension of the spool motor can be eased the motor/drive inside the CS has to have filament dragged forcibly back through the CFS. My question, is there a better way to do this?