- Home all the axes, then raise Z up 100m. Now grabe the nozzle and wiggle. Look for anything loose, any play you feel in the nozzle will show up in the print and cause issues.
- With axes homed as in step 1, grab each corner of hte gantry and wiggle up and down, look for loose bolts, play in pulley's on the Z motors, etc.
- Check your belt tension
- Derack your gantry: https://www.youtube.com/watch?v=cOn6u9kXvy0
- Make sure you do quad gantry level (QGL), and bed mesh after everthing reaches operating temperature (heat soaked).
- If you are using inductive probe, seriously consider a Voron Tap or Klicky. The inductive probe is known to have lots of issues.
- There is a
PROBE_ACCURACYcommand which is named poorly as it measures the repeatability of the probe, not the accuracy, but it is good to run this and make sure you have reasonable repeatability.
Video overview on how to solve common racking issues on the voron v2, the tips in this video also cover the v1/v0 and other corexy printers