dual z had a question

bzad

so i wanted to setup the dual z and so i connected my right motor to z driver and left to my e1 driver wanted to make sure i did this right dont want to hear a bang

; Drives
M569 P0 S0                                         ; physical drive 0 goes backwards
M569 P1 S0                                         ; physical drive 1 goes backwards
M569 P2 S1                                         ; physical drive 2 goes forwards
M569 P3 S0                                         ; physical drive 3 goes backwards
M584 X0 Y1 Z2:4 E3                                 ; two Z motors connected to driver outputs Z and E1
M671 X220:-20 Y0:0 S0.5                            ; leadscrews at left (connected to E1) and right (connected to Z) of X axis
M208 X-5:205 Y0:200                                ; X carriage moves from -5 to 205, Y bed goes from 0 to 200

and im a bit confused as to what i should have in bed g file i copied what was on the guide but i had a few lines from before would i just add to them or remove the old

M561 ; clear any bed transform
G28  ; home all axes
G29  ; probe the bed and enable compensation

should i just add this to that

G28                          ; home
M401                         ; deploy Z probe (omit if using bltouch)
G30 P0 X20 Y50 Z-99999       ; probe near a leadscrew, half way along Y axis
G30 P1 X180 Y50 Z-99999 S2   ; probe near a leadscrew and calibrate 2 motors
M402                         ; retract probe (omit if using bltouch)

and im using a NPN probe would i need to keep the 401/402?? and do i need to declare steps per mm again or it will use the same parameters as other z automatically?
config.g bed.g
Printer is a maker select v2 aka wanhao i3 aka whatever names the came up with

Phaedrux

Your bed.g should probably look something like this

M561 ; clear any bed transform
G28  ; home all axes
G30 P0 X20 Y50 Z-99999       ; probe near a leadscrew, half way along Y axis
G30 P1 X180 Y50 Z-99999 S2   ; probe near a leadscrew and calibrate 2 motors
G30 P0 X20 Y50 Z-99999       ; probe near a leadscrew, half way along Y axis
G30 P1 X180 Y50 Z-99999 S2   ; probe near a leadscrew and calibrate 2 motors
G28  ; home all axes
G29  ; probe the bed and enable compensation

This assumes that your homeall.g is using a G30 to home the Z axis. The leveling is done twice to ensure it's settled out.

M671 X220:-20 Y0:0 S0.5 You might want to increase S0.5 to S2 at the start in case there is quite a bit of tilt. It's probably a good idea to manually square up and level everything before passing it off to the automatic probing.

bzad

@phaedrux ok thank you I have manually leveled it as best as I can with my eye lol. And I’ll swap in the bed.g. I didn’t think I wanted to do 2 because angle may be 2 high and it could jam the gantry

bzad

@phaedrux my home all is this

G91 ; relative mode
G1 H2 Z4 F200 ; raise head 4mm
G1 H1 X-205 Y-205 F3000 ; move up to 240mm in the -X and -Y directions until the homing switches are triggered
G1 H2 X4 Y4 F600; move slowly 6mm in +X and +Y directions
G1 H1 X-10 Y-10 ; move up to 10mm in the -X and -Y directions until the homing switches are triggered
G90 ; back to absolute mode
G1 X100 Y100 F2000 ; put head over the centre of the bed, or wherever you want to probe
G30 ; lower head, stop when probe triggered and set Z to trigger height

should be okay?

Phaedrux

should be ok

bzad

@phaedrux your the best thank you