Struggling with Y Calibration
Just built a V-Core4 500 IDEX and have been going through the belt tuning. I have looked through other posts her an attempted to tune the belts, but it seems that I am doing something very wrong.
Even more confusing, a fine grey-ish powder has begun to appear in the lower left motor box and I can't figure out why

3 Replies
Sent two copies of X by accident

The most recent guide that I followed was one from Tillibilli here: https://discord.com/channels/582187371529764864/1344039921446551612/1344311520477053049
The fine grey powder is belt material. Slight mis alignment of the pulleys. You will almost always see this with new belts imo. Have you done any shaper graphs?