I have a cam program that I’m running in in/lb/s. Until today, the program has executed flawlessly. Today I noticed that after the initial tls wizard, the spindle was making very small movements (not the intended ones) while gSender displayed the program executing correctly.
After checking the machine information tab, I saw that the units had switched to G21. I power cycled the machine and reran the program, this time it switched to G21 after the second tool change. I tried several more runs and some ran until completion while others stopped after one of the TLS operations.
To specify, some failed at the initial tls, some passed the first tls and failed at the second, and the same for the final tls.
Has anyone encountered this issue?
I also searched my GCode and didn’t find a single instance of G21.