Manual Bed Leveling Assistant huge values returned

bdelia

Hey there,

I believe I have my Duet set up properly for using the Manual Bed Leveling Assistant, but I get ridiculously high values return from its output:

Manual corrections required: 0.00 turn up (0.00mm) 3743725.00 turn down (1871862.50mm) 3743724.75 turn down (1871862.38mm) 3743724.00 turn down (1871862.00mm)

Here is my config.g:

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.9 on Sat Dec 05 2020 14:37:53 GMT-0800 (Pacific Standard Time)

; General preferences
G90                                            ; send absolute coordinates...
M83                                            ; ...but relative extruder moves
M550 P"BD-HEVO"                                ; set printer name
M669 K1                                        ; select CoreXY mode

; Network
M552 P192.168.0.69 S1                          ; enable network and set IP address
M553 P255.255.255.0                            ; set netmask
M554 P192.168.0.1                              ; set gateway
M586 P0 S1                                     ; enable HTTP
M586 P1 S0                                     ; disable FTP
M586 P2 S0                                     ; disable Telnet

; Drives
M569 P0 S1                                     ; physical drive 0 goes forwards
M569 P1 S1                                     ; physical drive 1 goes forwards
M569 P2 S1                                     ; physical drive 2 goes forwards
M569 P3 S1                                     ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3                               ; set drive mapping
M350 X16 Y16 Z16 E16 I1                        ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E409.00              ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00            ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E1200.00        ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00            ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30                   ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                        ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1                               ; set axis minima
M208 X265 Y280 Z410 S0                         ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                            ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                            ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S2                                     ; configure Z-probe endstop for low end on Z

; Z-Probe
M558 P5 C"^!zprobe.in" I0 H5 F120 T6000        ; set Z probe type to switch and the dive height + speeds
G31 P500 X-25.914 Y-53.86 Z0.882               ; set Z probe trigger value, offset and trigger height
M557 X26:239 Y54:226 S20                         ; define mesh grid
M671 X26:26:239:239 Y54:226:226:54 P0.5          ; point1 (26,54), point2 (26,226), point3 (239,226), point4 (239,54)

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0                          ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B0 S0.90                               ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                        ; map heated bed to heater 0
M143 H0 S100                                   ; set temperature limit for heater 0 to 100C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138  ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1                           ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00                               ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                   ; set temperature limit for heater 1 to 280C

; Fans
M950 F0 C"fan0" Q500                           ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1                                 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500                           ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                              ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0                               ; 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

; Custom settings are not defined

; Miscellaneous
M501                                           ; load saved parameters from non-volatile memory
T0                                             ; select first tool

And my bed.g file:

; bed.g
; called to perform automatic bed compensation via G32
;
; generated by RepRapFirmware Configuration Tool v3.1.9 on Sat Dec 05 2020 14:37:53 GMT-0800 (Pacific Standard Time)
;M561 ; clear any bed transform
;G29  ; probe the bed and enable compensation

G28 ; home
;G0 X0 Y0
G30 P0 X26 Y226 Z-99999 ; probe near an adjusting screw
G30 P1 X26 Y226 Z-99999 ; probe near an adjusting screw
G30 P2 X239 Y226 Z-99999 ; probe near an adjusting screw
G30 P3 X239 Y54 Z-99999 S4; probe near an adjusting screw and report adjustments needed
G28 ; home

Any help is greatly appreciated.

Dr_Ju_Ju

What does your height map look like ?

bdelia

I have not created a height map yet. I am trying to set up my Capacitive NPN switch and the suggested steps include to first manually level the bed. I have done that by hand, now I wanted to get the Manual Bed Leveling Assistant working so I can dial in the bed level as best as possible before creating that height map.

Do I have the steps wrong?

Veti

@bdelia

just run a G29 and look at the image. it will help

bdelia

@Veti said in Manual Bed Leveling Assistant huge values returned:

@bdelia

just run a G29 and look at the image. it will help

Ok, will do once I get back home. Thanks for the assistance in this.

BoA

Probing twice the same point?

G30 P0 X26 Y226 Z-99999 ; probe near an adjusting screw
G30 P1 X26 Y226 Z-99999 ; probe near an adjusting screw

Phaedrux

@bdelia said in Manual Bed Leveling Assistant huge values returned:

G28 ; home

What is in your homeall?

bdelia

@BoA said in Manual Bed Leveling Assistant huge values returned:

Probing twice the same point?

G30 P0 X26 Y226 Z-99999 ; probe near an adjusting screw
G30 P1 X26 Y226 Z-99999 ; probe near an adjusting screw

Well that explains the double tap on that corner Thanks for the proofreading!

bdelia

@Phaedrux said in Manual Bed Leveling Assistant huge values returned:

@bdelia said in Manual Bed Leveling Assistant huge values returned:

G28 ; home

What is in your homeall?

Here is my homeall

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.1.9 on Sat Dec 05 2020 14:37:53 GMT-0800 (Pacific Standard Time)
G91                     ; relative positioning
G1 H2 Z5 F6000          ; lift Z relative to current position
G1 H1 X-270 Y-295 F1800 ; move quickly to X or Y endstop and stop there (first pass)
G1 H1 X-270             ; home X axis
G1 H1 Y-295             ; home Y axis
G1 X5 Y5 F6000          ; go back a few mm
G1 H1 X-270 F360        ; move slowly to X axis endstop once more (second pass)
G1 H1 Y-295             ; then move slowly to Y axis endstop
G90                     ; absolute positioning
G1 X25.914 Y53.86 F6000 ; go to first bed probe point and home Z
G30                     ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91                    ; relative positioning
;G1 Z5 F100             ; lift Z relative to current position
;G90                    ; absolute positioning

bdelia

Ok, first off I want to thank this community for always being willing to help out.

I think probing that one point twice that @BoA pointed out was the issue. I updated my bed.g file and all seems good now.

Phaedrux

@bdelia said in Manual Bed Leveling Assistant huge values returned:

;M561 ; clear any bed transform

You may want to uncomment this, because you would want any mesh compensation or other bed surface alterations to be canceled when doing the leveling.

bdelia

@Phaedrux said in Manual Bed Leveling Assistant huge values returned:

@bdelia said in Manual Bed Leveling Assistant huge values returned:

;M561 ; clear any bed transform

You may want to uncomment this, because you would want any mesh compensation or other bed surface alterations to be canceled when doing the leveling.

Thanks for the tip