Printing TPU- clogging Extruder
Hi guys,
I have a MK3s. First printer and new to it, so still learning the ropes.
I found some tips on printing with Fiberology Flexible 30D filaments on a previous post that were helpful but I am still having problems. I've had a real hard time to print this filament, even with all the tweaks from that thread.
Then I figured out that the prints were going wrong at a certain point. I'm not sure what the term is for the big squish of extruded filament that the MK3s squirts out immediately after the bed leveling routine and just before the extruder moves across to the print- maybe it's called priming the nozzle or something like that! So loading the filament is fine- material comes out, all good. After the bed leveling the thick squish is good too, then the extruder moves to the print and nothing, like the material has stopped flowing by the time it gets to the work area. I tried everything suggested including changing the nozzle height from the build plate. I had to keep stopping the print, unclog the extruder and try again, spent many hours doing this.
So between the nozzle priming and the print starting I paused the print right after the priming, unloaded and reloaded the filament and then resuming the print, and this seems to work great!
So I don't understand what it is that happens between the priming the nozzle and the print starting, but my fix seems to help things get going properly.
If there is a better solution, some setting to change after the priming, I would greatly appreciate any help.
Cheers