Auto bed compensation hits the wall
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Hello.
Thank you for a wonderful hardware and software! I have already printed at least 100 parts.
With that said
I have never managed to use Auto bed compensation. When I press the button, the printer head runs towards the first point, and beyond into the printer wall. It does not stop at the coordinates G30 P0 X70 Y15 Z-99999 that I have set for the first point in bed.g. I have tried to change the coordinates for the first point, but it runs to the X0 Y0 corner and keeps banging the wall until I hit Emergency stop.Before Auto bed compensation, I have run home all, with working x and y endstops. So I would expect the printer knows where it is before auto .
Any clues?
Regards
Edit: Header
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That sounds odd. Please post your config.g and bed.g files.
Which firmware version are you running? What happens if you send that G30 command manually?
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Here is more info.
Running G30 P0 X70 Y15 Z-99999 in G-console sends the printer head in to the wall in the X0 Y0 corner.
I am controlling the printer via the web page, not the via Paneldue.Current firmware```
[[language]]
Firmware Name: RepRapFirmware for Duet WiFi
Firmware Electronics: Duet WiFi 1.0
Firmware Version: 1.16 (2016-11-08)
WiFi Server Version: 1.03 (ch fork)
Web Interface Version: 1.13config.g[[language]]
; Configuration file for BigBox 3D printer
;- Communication and general
M111 S0 ; Debug off
M550 BigBox ; Machine name and Netbios name (can be anything you like)
M551 Preprap ; Machine password (used for FTP)
M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED ; MAC Address;- Wifi Networking
M552 S1 ; Enable WiFi
M555 P2 ; Set output to look like Marlin;- Movement section
M569 P0 S1 ; Drive 0 goes forwards (change to S0 to reverse it)
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M574 X1 Y1 Z1.2 S1 ; set endstop configuration (X and Y endstops only, at low end, active high)
M906 X800 Y700 Z700 E500:500 I30 ; Set motor currents (mA) and motor idle factor in per cent
M201 X800 Y800 Z15 E1000 ; Accelerations (mm/s^2)
M203 X15000 Y15000 Z200 E3600 ; Maximum speeds (mm/min)
M566 X600 Y600 Z30 E20 ; Minimum speeds mm/minute
M208 X300 Y240 Z300 ; set axis maxima (adjust to suit your machine)
M208 X0 Y0 Z-0.0 S1 ; set axis minimum (adjust to make X=0 and Y=0 the edge of the bed) --M208 X0 Y0 Z-0.2 S1
M92 X160 Y360 Z1600 ; Set axis steps/mm
M92 E417.5:417.5 ; Set extruder steps per mm
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M350 X16 Y16 E16 I1 ; Set 16x microstepping with interpolation
M84 S60 ;Stop idle hold. Set stepper idle timeout in sec;-Z probe section
M558 P1 X0 Y0 Z1 H3 F200 T5000 ; Smart IR Z probe, used for homing Z axis, dive height 3mm, probe speed 200mm/min, travel speed 5000mm/min
G31 P500 X140.0 Y150.0 Z1.05 ; Set the probe height and threshold; increase Z to decrease bed probe distance ;Z1.48;-Heater and thermistor section--;- If you have a Duet board with 1K thermistor series resistors, change R4700 to R1000 to the following M305 commands
M305 P0 T100000 B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the bed thermistor ADC correction
M305 P1 T100000 X200 ;B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the first nozzle thermistor ADC correction
M305 P2 T100000 X201 ;B4388 R4700 H0 L0 ; Put your own H and/or L values here to set the second nozzle thermistor ADC correctionM307 H0 A134.6 C406.4 D4.4 B0 ; PID settings for bed
M307 H1 A312.6 C145.8 D8.8 B0 ; PID settings for extruder 0
M307 H2 A216.4 C98.6 D5.8 B0 ; PID settings for extruder 1
M570 S120 ; Increase to allow extra heating time if needed;-Fans
M106 P0 F10 ; Fix for Bigbox Blower
;M106 P0 S0.3 I0 F500 H-1
M106 P1 T70 H1
M106 P2 T70 H2;-Tool definition section
M563 P0 D0 H1 ; Define tool 0 to use extruder drive 0 and heater 1
G10 P0 S0 R0 ; Set tool 0 operating and standby temperatures
M563 P1 D1 H2 ; Define tool 1
G10 P1 S0 R0 ; Set tool 1 operating and standby temperaturesT0 ; select first hot end
bed.g``` [[language]] M561 ; clear any bed transform, otherwise homing may be at the wrong height ;G30 P0 X120 Y50 Z-99999 ;test G30 P0 X70 Y15 Z-99999 ; define points in a clockwise direction around the bed, starting near (0,0) G30 P1 X70 Y190 Z-99999 G30 P2 X295 Y190 Z-99999 G30 P3 X295 Y15 Z-99999 G30 P4 X140 Y100 Z-99999 S ; finally probe bed centre, and calculate compensation (S0 or just S??) -
This line in config.g is the problem:
G31 P500 X140.0 Y150.0 Z1.05 ; Set the probe height and threshold; increase Z to decrease bed probe distance ;Z1.48
It says that your Z probe is offset from the nozzle by 140mm in the X direction and 150mm in the Y direction. That can't be right.
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Changed to G31 P500 X0.0 Y0.0 Z1.05 and now it is running as supposed. I do have to put down the bottle…
And I should change to S4 at the end of bed.g to save the calculation?
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S or S0 means default, which in your case will be S5 i.e. use all 5 points.
