My K1 Max is still relatively new and I decided to get a CFS even though originally I didn’t want to. I figured out pretty soon that there were some things I wish I could do that. I couldn’t without it. After installing the CFS everything worked fine. Printing the banshee that’s four color, but then things kind of fell apart and the extrusion was horrible. I have done everything I can figure out. Keep in mind I have two under three printers the print flawlessly but I haven’t printed for 6 years because I have had some health issues I’ve had to deal with.
After messing around and watching things feed, I figured out that one of my spools slows down in the CFS when it’s trying to extrude and regular interface and so I put that spool away. Got a different one and will still having extrusion problems. There were points where nothing would come out of the nozzle at all.
What I finally did just on a hunch was replace the final 20 in of PTFE tubing from the back of my K1 Max to the printhead. The PTFE tubing I chose is left over from an upgrade I did to both of my ander and printers. Is the bluish colored slightly narrower PTFE that seems to be smoother and feed better.
Miracle of miracles; problem solved! I’m not sure how that solved the problem, but I’m very happy it did.