ja: Command isn't tracking feedback in machine-off about linuxcnc HOT 3 CLOSED

Ok - so the above directions seem to not work 100% of the time. What does seem to work 100% of the time is

1. power up - home machine
2. open halcmd
3. unlink joint.0.motor-pos-fb
4. jog X axis -> get a following error
5. toggle machine on. - > following error -> machine turns off.

from linuxcnc.

I think another connected issue is how ja doesn't update cartesian feedback position from joint feedback position while in "machine off" mode.

1. power on, home all, machine off
2. open halcmd
3. unlink joint.0.motor-pos-fb
4. setp joint.0.motor-pos-fb various values

Steps 3/4 are emulating the case where you have a servo machine where you can turn the motor shafts with the amplifiers off, or if you have a nice big machine where the Z axis droops measurably with amplifiers off.

Expected: cartesian feedback position tracks changes in joint feedback, as it does in 2.7

I think that if this cartesian-tracks-joints behavior were happening, then the fix at 3cd7b92 would not be needed (but is probably harmless)

from linuxcnc.

I tested at the tip of ja12 and the steps I described in my previous comment now work as I expect. @samcoinc also says things are better for him.

from linuxcnc.