Core One TPU issues
Ive been having issues printing with TPU. Ive tried the suggested fixes that were mentioned online and in other topics such as slowing the print down, loosening the idler screws on the hot end, drying the filament for almost 2 days in a filament dryer, increasing the temp, and decreasing the temp with nothing seeming to work. Every print gets a few layers in, then starts to what I think is underextrude, then stops extruding altogether, though the printer does not detect a nozzle jam. The filament is elagoo 95A tpu, the slicer setting is the built in one in prusa slicer ultrafuse tpu 95A because a friend of mine says that is what he used when printing tpu and it worked for him. The nozzle is the .4mm stock nozzle that comes with the core one. Im running out of things to try and would appreciate some advice, thanks in advance.
RE: Core One TPU issues
Not a TPU expert, but part of it looks like layer time is wrong for the filament. The nozzle is printing so slow it is melting the last pass. Turn the part fan on, reduce the minimum layer times, and possibly decrease nozzle temp. And, since layer one is broken, the TPU is probably hanging up in the Bowden or the extruder isn't feeding it well.
Others have said some TPU requires feeding directly into the extruder, bypassing the Bowden.
RE:
I've used Overture TPU and Overture Fast TPU successfully (both 95A) and get very good prints using a textured plate. I suppose in this case, the pre-canned profiles were what made it successful. I didn't have to bypass the Bowden or do anything special to print it.
I would suggest starting with the Flex profile and modify it to match your specific filament. Also, printing a TPU temperature tower should help you hone in the parameters.