Just had my new MINI arrive today & almost everything is working great.
The only problem I’ve had with the few prints I’ve done is the dimensions
are a bit off & it appears to be over-extruding.
Each layer looks like it’s putting down more filament than it needs to be.
I’m presuming this can be fixed by changing the “E-Steps per 1mm filament”
setting although I’m not sure what to put for this; I was hoping someone
might be able to suggest a suitable value to start with so I can experiment.
As for the dimensional instability, I just printed a 18x18x18mm cube as a test.
It came out (roughly) 18.5x18.5x18, oversized in the X & Y axes.
I know I’m not going to expect micron tolerances from a FFF 3D printer,
but I also printed a reduction gear assembly which includes all the parts
separately for you to assemble after printing & nothing fit together.
Holes were undersized & the rods to go into them were oversized.
Anyone got any suggestions?