G28 / G29 / G32 - confused when using 2 independent Z-Axis
-
What firmware version are you using? Also I don't see a M554 command. What type of z Probe are you using?
-
I only copied the relevant files for probing. I am using a BLTouch probe.
-
@phaedrux said in G28 / G29 / G32 - confused when using 2 independent Z-Axis:
What firmware version are you using? Also I don't see a M554 command. What type of z Probe are you using?
You don't need a M554 command if you are connecting by M552...?
-
@kuhnikuehnast I'm sorry, I meant M558 for probe configuration.
-
Also, the reason I asked what firmware version is that there was a bug that could cause the mesh offset to be applied incorrectly leading to off first layers such as you describe.
-
I am on the actual firmware (2.0(RTOS) (2018-06-05b3))
The M558 is:
M558 P9 H5 F180 T15000 ; Set Z probe type/mode 9. H=Dive Height. F=Speed the bed moves -
Try firmware 2.01 veta 2.
https://forum.duet3d.com/topic/6070/new-firmware-2-01-beta-2-available
Then rerun your bed leveling and probe offset measurements and see if your issue is resolved. Part of the problem was that M561 was not clearing the bed transformation as expected.
-
If that doesn't help, try adding this to the start of your print gcode
G29 S2 ; Disable bed compensation. G29 S2 ; Disable compensation again. G28 Z ; Home Z G29 S1 ; Load heightmap.csv and enable compensation.
-
But am I right with this procedure:
- G28
- G32
- G29 ?
-
Yes I think so. You appear to be following the guidelines here: https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors
There should be a final g28 z before starting a print to make sure you know where z0 is so that first layer height is accurate.