Moving an actuator as a ZProbe instead of the entire axis
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Hello,
Would it be possible to map an actuator with a stepper as the Z probe with a switch on end rather than only deploying the Z probe and moving the entire Gantry up and down?
My gantry weighs almost 100 Kg so I'd like to minimize the Z motion as much as possible.
I was thinking something along the lines of:- Map the actuator as a separate axis and home the actuator zero with an end-stop on the actuator.
- Move the extruder to the probe point and remap the Z to the actuator.
- Retract the actuator till another switch or sensor (which is mapped as a Z probe) at the bottom end of it touches the bed and the actuator moves back up again.
- Remap the Z back to the Z motors.
This seems doable as an alternative, but is there any inbuilt functionality in the Z probing setup that I could use here?
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@sotpurk what do you want to use this Z probe for? Setting Z=0, or something more complicated such as mesh bed probing, bed tramming, or delta calibration?
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@dc42 Setting Z=0, mesh probing, and bed leveling.
I tried the mentioned flow but the motors de-energize when changing assignments which results in lost steps. -
@sotpurk I have moved this to the firmware wish listm, based on the conversation here:
https://forum.duet3d.com/topic/31694/keep-motors-energised-when-changing-assignment