Problems with Z axis

Troubleshooting
25

Looks like a proper 1 to 1.
Did you measure the ohm’s side to side of all 6?
Sorry, i’m fishing in the dark. The error is interesting enough though.
If you replace the hardware and the problem is gone, please sponsor the old hardware for a curious guy (Shipping will be paid).

Edit: One more thing to exclude, remove the black cap and check if this black thing is tightly glued to the motor shaft and not damaged. (Perhaps watch it while running)
image

Edit: For further forensics to narrow things down, i’m wondering if you are up for a procedure (that might lead nowhere)?

It would involve this:
In your GC folder there is a log.txt. That thing grows as GC runs, so:

  • first step delete log.txt with GC closed (will be created new when GC starts)
    Step 2 would be to run this .nc file that only contains 3mm up and down z-moves.
    Good idea to centre z in the middle of the rod and 0 there.

G21 (millimeters)
G90
G1Z0.000 F100
(Round 1)
G1Z3.000 F100
T2 M06 ( Change to selected tool )
G1Z0.000 F100
T1 M06 ( Change to selected tool )
G1Z-3.000 F100
T20 M06 ( Change to selected tool )
G1Z0.000 F100
T1 M06 ( Change to selected tool )
(Round 2)
G1Z3.000 F100
T2 M06 ( Change to selected tool )
G1Z3.000 F100
T1 M06 ( Change to selected tool )
G1Z0.000 F100
T2 M06 ( Change to selected tool )
G1Z-3.000 F100
T1 M06 ( Change to selected tool )
G1Z0.000 F100
M30
M02 (End of Program)

z–up–dwn.nc (491 Bytes)

Close GC right after.

The tool-changes will stop GC until you press the pause button to give you time to evaluate the results of each move. Kindly do not take to long to proceed (measure?), as that will just blow up the log file.
A video would be cool.

Upload the fresh and small log.txt together with the groudcontrol.ini file (found in C:/users/{your-user-name}

With your error i’m not expecting to find something, but would not like to miss the try.

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