It only takes minutes, you just have to meet the following criteria:
- Entering at least 5 topics
- Reading at least 30 posts
- Spend a total of 10 minutes reading posts
From here: Understanding Discourse Trust Levels
It’s intended to get new members to search and read existing threads before starting their own.
gcode files have to be zipped to be uploaded.
0.1mm (each direction) could easily be explained by slop in the linear modules (backlash). If you gently push the head you should be able to feel it rock a bit side to side if that’s the issue - it’s only .1mm though it’s not much.
In the short term that could be corrected by prefixing M425 X0.05 Y0.1 F1 S0 in your gcode (or something like that, determined with testing to verify roundness). Long term you’ll need to a) get support to replace your modules or b) follow sdj’s guide on opening up and tightening the roller tensioning mechanism: Excessive play in x-axis linear module bracket - #9 by sdj544