So I have a bambulab A1 and recently wanted to print something with TPU. The issue I have however is that the extrusion is just hella inconsistent. I get a coupel seconds of normal extrusion and then a couple seconds of pretty much none. The first layer was only half filled when I checked and I want to know if you guys have any suggestions.
I used the base preset for generic TPU.
This is the first layer I get after trying a couple different presets. Better than before but still horrible.
Is your filament dry? With TPU, it's the first time that I saw a drastic difference of print quality. I dry my TPU for 3 hours at 45°C each time before printing.
turn off dynamic flow calibration, and print slower. Don't use AMS, you have to use the external spool holder.
Gotta dial in those settings, I had lots of issues with tpu at first. I found my specific issue was with my retraction amount and getting clogs. Some.brands have profile for their fillaments on their websites that I've found good in the past
Maybe try with these settings (found elsewhere) : https://imgur.com/a/vGV9DV0
It seems like it's the default TPU settings with these tweaks :
all 15 comments