Points S0 and S1 must be in clockwise order...

SupraGuy

So... I'm trying to get independent lead screw levelling working, which I did have working before, but on the new board... I get that message with the exact same macro that I was using before.

Obviously, I've changed something.

I can use the commands to report the relative distances, enough to tell me what I need, ,but I cannot get it to make the adjustments. I don't know what I've forgotten to set.

I do have the M671 command for the motor positions defined.

G30 ... S-1 will report the relative positions and deviation, but of course doesn't correct for it.

Config.g:

; Configuration file for Duet WiFi (firmware version 1.20 or newer)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Tue Jun 26 2018 20:51:43 GMT-0600 (Mountain Daylight Time)
; Modified by DMG 09/2/2020

; General preferences
G90                              ; Send absolute coordinates...
M83                              ; ...but relative extruder moves

; Custom configuration
M584 Z2:4 E3                     ; Set Z motors on drives 2 and 4 DMG 08/30/2018
M671 X-43.0:309:0 Y137.5:137.5 S2; Set the Z motor relative locations DMG 08/30/2018

; Network
M550 PDMG3D01                    ; Set machine name
M552 S1                          ; Enable network
M586 P0 S1                       ; Enable HTTP
M586 P1 S1                       ; Enable FTP
M586 P2 S0                       ; Disable Telnet
M575 P1 B57600 S1                ; Enable PanelDue


; Drives
M569 P0 S1                       ; Drive 0 goes forwards
M569 P1 S1                       ; Drive 1 goes forwards
M569 P2 S1                       ; Drive 2 goes forwards
M569 P3 S1                       ; Drive 3 goes forwards
; DMG 08/30/2018 I think the following line need to be configured
M569 P4 S1                       ; Drive 4 goes forwards
M350 X16 Y16 Z16 E16 I1    ; Configure microstepping with interpolation
M92 X400 Y400 Z400 E102.8        ; Set steps per mm
M566 X900 Y900 Z12 E120          ; Set maximum instantaneous speed changes (mm/min)
M203 X7500 Y7500 Z480 E1200      ; Set maximum speeds (mm/min)
M201 X500 Y200 Z250 E250         ; Set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30     ; Set motor currents (mA) and motor idle factor in per cent
M572 D0 S0.16                    ; Set Pressure Advance to 0.16
M84 S30                          ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                 ; Set axis minima
M208 X248 Y285 Z190 S0           ; Set axis maxima

; Endstops
M574 X2 Y2 S0                    ; Set active low endstops

; Z-Probe
M574 Z1 S2                       ; Set endstops controlled by probe
M558 P1 H5 F720 T6000            ; Set Z probe type to unmodulated and the dive height + speeds
G31 P500 X-15 Y0 Z2.22            ; Set Z probe trigger value, offset and trigger height
M557 X15:205 Y15:205 S20         ; Define mesh grid

; Heaters
M305 P0 T100000 B4138 C0 R4700   ; Set thermistor + ADC parameters for heater 0
M143 H0 S120                     ; Set temperature limit for heater 0 to 120C
M305 P1 X501 R4700               ; sensor 1 PT1000
M143 H1 S300                     ; Set temperature limit for heater 1 to 300C

; Fans
M106 P0 S0.0 I0 F500 H-1         ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45        ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45        ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1                    ; Define tool 0
G10 P0 X0 Y0 Z0                  ; Set tool 0 axis offsets
G10 P0 R0 S0                     ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings are not configured

bed_level.g:

G28 Z ; home
M561 ; clear bed transform
G30 P0 X20 Y137.5 Z-99999 ; probe near a leadscrew, half way along Y axis
G30 P1 X180 Y137.5 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors

I haven't cleaned up the comments in that, but it's pretty close to the example in the wiki.

I'm in the process now of updating to firmware 3.1.1, since I'm re-doing a lot of stuff anyway. The board has 2.05.1 installed now.

Phaedrux

Based on your config, your first probe point should be for the motor connected to driver 2. Do you have your z motor cables swapped?

SupraGuy

I've switched the probe points back and forth, this is where they're at now. I'll swap them again. I don't even remember which motor is currently connected to which drive.

Phaedrux

Well to keep it straight forward connect the left motor to driver 2 and the right motor to driver 4, then your M584 Z2:4 will match the positions of M671 and then your points in bed.g should match as well.

SupraGuy

Well, that didn't help.

Macro now looks like:

G29 S2 ; Clear and disable mesh compensation
M561 ; clear any bed transform
G28 Z
G30 P0 X35.0 Y137.5 H0 Z-99999
G30 P1 X185.0 Y137.5 H0 Z-99999 S2
G28 Z

I'd be willing to mae that line a diagonal if it would help, but I can't help but thin that I've just missed something in the configuration somewhere.

droftarts

@SupraGuy said in Points S0 and S1 must be in clockwise order...:

M671 X-43.0:309:0 Y137.5:137.5 S2

You’ve got three points for X. Should be a . not a : between 309 and 0. I expect that’s messing it up.

Ian

Phaedrux

@droftarts Keen eye!

SupraGuy

That would be a problem, yeah... No idea how the heck that got there, when I was copy/pasting the file from the one that worked before...

So yeah, it works. You'd think that an old Fortran programmer would know to check punctuation.

droftarts

@SupraGuy great, glad that fixed it! I should probably test what M671 reports when set like this...

Ian