Mid-print started getting "Error Short to Ground reported by driver 0" (the X-axis stepper on my Railcore).
Stopped the print, examined for a loose connector (that happened once before) annd errors kept rolling in every 5-10 secs. Out of ideas restarted the machine and now the errors stopped (as per console output below).
Then tried homing the machine and errors came back in abundance (together with defective motion). Then took the lid off the machine (allowing everything to cool down after 70C chamber print) AND unplugged stepper connector, examined and replugged.
Having restarted machines homes normally and all errors gone.
What are the possible causes of the problem?
although the connector looks fine I know a loose connector can cause this problem;
could stepper overheating cause the problem? (they were running hot - though outside the build chamber they share some aluminium frame);
12/06/2021, 21:06:18 Connection established
12/06/2021, 21:06:17 Connection interrupted, attempting to reconnect...
HTTP request timed out
12/06/2021, 21:06:05 Error: short-to-ground reported by driver(s) 0
12/06/2021, 21:06:00 Error: short-to-ground reported by driver(s) 0
12/06/2021, 21:05:56 Error: short-to-ground reported by driver(s) 0
ps have these: https://www.moonsindustries.com/series/nema-23-high-precision-hybrid-stepper-motors-b020403