v-core/Skrat/ebb42 overrides to get z1 &z2 working
RatRig advertises this config is possible so that’s what I bought and tried entering the stepper pins from the skrat manual (noting the 1 typo in the manual) into my override section but still only z0 moves, help please
9 Replies
upload your printer.cfg
The default SKRAT configs are strictly for the Minion with z1 & z2 pin data all "nulled" out, as is the wiring diagram which only shows XYZ and extruder. As advertised to, I am using the SKRAT with a toolboard and V-core 3, and need all 3 Z drivers, Extruder will be handled by the EBB42v1.2. I have entered the pin data from the manual in my overrides but it doesnt work.
[stepper_z2] step_pin: PB10doesn't look right according to https://github.com/bigtreetech/SKRat/blob/master/Hardware/BTT_SKRat_V1.0_PIN.pdf
[stepper_z2] step_pin: PB11you also need a
! in front of the enable pins
so
enable_pin: PD9 should be enable_pin: !PD9
enable_pin: PA8 should be enable_pin: !PA8I think this is a known typo since PB11 is also the NSS pin in the manual. Others have noticed this. The ! on the enable pin now has z1 & z2 spinning but in the wrong direction, should i use homing_positive_dir?
just invert the direction logic
dir_pin: PC6 becomes dir_pin: !PC6perfect, thanks! will test now
that worked, I homed Z but it still allows me to move the bed upward past the home, potentially allowing the bed to crash into the toolhead. How do I limit this, other than "by not doing that"?
have you done your probe calibration stuff yet?
I just did, guessing this sets the ceiling! great!
will do it