Hey everyone, I am also dealing with the 15mm error and I have noticed an issue with one of my belts not spooling tightly anymore during the initial setup. The other three arms remain tight. There seems to be a mismatch between the how much the motor turns and what the encoder reads while extending the belts. I noticed the coil was way too loose and took this video. Sadly this caused my belt to bind on the retraction step. Does any one know of a method to monitor the current reading of the encoder as I “slip” the belt? My best guess is that some current is “leaking” into the encoder when the router is spinning and I’d like to compare the readings from that belt on a dry run. Also I glued the Ethernet port before ever running my M4 so the problem is not a bad connection.
Interestingly this user is also experiencing an issue on the exact same belt. The Projects category!