Slight filament grinding
so I got my Mini for about a week now and noticed my filament is slightly grinded after unloading it. I can feel the surface has some minor dents in it where the extruder grabbed it.
So far, prints are looking nice. Typically I would say never change a running system, but am I running into problems with this and should loosen the extruder tension screw?
BTW, is there a good overview of all the adjustment screws of the mini? Got an assembled one and therefore I am not 100% sure if I identified the correct screw for extruder tension. I was surprised I couldn't find a prusa knowledge base page about it. But maybe I was blind.
Some teeth marks are normal. However, the Mini extruder has a propensity for grinding filament if not properly set up. To find the screw to adjust the tension, see Step 44 in the Mini kit assembly manual: https://help.prusa3d.com/en/guide/3-x-axis-extruder-assembly_199519
I’ve found the Mini's original extruder to be too sensitive to the tension on the extruder idler screw for my taste. I ended up replacing it with a Trianglelabs dual drive extruder (a Bondtech clone), and never had any issues again, with more than two dozens filament types and brands.
Thanks for your answer. When you say some marks are normal, I will leave it like this, since it works fine for now.
Will think about another extruder if I run into problems.
You can always open the extruder and check for filament residue and as needed loosen the idler screw a bit