Weatherman: It is hard to tell what else might be going on that you don’t mention, but I am guessing for sure given the time frame that tinyG is getting reset a lot due to power down, power up.
So simply rebooting does not help, I guess.
Or would you say that jogging is directionally consistent after a reboot until you try to change a parameter?
If that is true, would you also say that , after a reboot, changes made from the command line are OK but changes made with the CP configuretinyG widget cause the direction to be erratic for a while?
Regarding you dimension errors (1″ circle resulted in 0.97″.
That’s a 3% error, should be better than that .
You are talking the bit diameter into account when you run the Gcode, correct?
If you stay in mm, do the reversals occur as well?
What I mean is:
1. reboot, machine comes up in mm.
2. G1 X10 to move to right 10mm
3. G1 X-10 to move back to zero.
Does this work?