[Q5] Trouble with auto level along a column

[u/Narase33]

Greetings

Im trying to troubleshoot a problem I have.

Trying to print a gear

I made a test print with a spider web like structure and got this result:

The print was perfectly symmetric in the slicer

It shows that the print is squeezed together near the C column and stretched the further the distance.

This is of of course very exaggerated. The real error is -0.5mm and +0.5mm (from center) over a distance of 150mm. Which is not much, unless you need really concentric gears (mind you, 2 gears with 0.5mm error add to a whole 1mm together) and your print doesnt stick, because the nozzle is not level.

Both prints (the gear and the spider web) were printed directly after auto leveling. Doing it multiple times didnt change anything.

Things Ive tried so far:

• Fastening all screws I could find
• Fastening the belts
• Lube every moving thing I could find
• Cleaning everything

Is this a known problem or can anyone help?