Has anuone been successful in getting TPU to print on the K2? I have tried to run TPU without the CFS, but it doesn’t feed correctly.
I’ve done it many times on my K2 Plus. The trick is that you must ensure that the PTFE path is completely free of any tight bends. Although it is possible to run it through a y-splitter via the CFS buffer - I’ve done this successfully - the cleaner path is a y-splitter after the CFS buffer. The shorter the PTFE path the less friction and greater success. In my case, I used the side spool holder for this purpose.
also you can print spacers for the extruder. they help too. 3D Printer Files | 3MF File | Creality K2 Plus Pro Combo & Hi TPU Extruder Spacer | Creality Cloud