Bed levelling using multiple independent Z motors
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- Hello, I have a problem with a BLV MGN with Duet Wifi and RepRapFirmware 3, "Leveling the bed with several independent Z motors",
I have done everything that says the page https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors, but still when I send a G32 the extruder goes to the screws and when the bed is finished, no solution is leveled?
I attach my data from config.g and bed.g.
I'm very sorry for the bad translation from Spanish to English. Thanks.
; config.g ; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Apr 10 2021 17:47:01 GMT+0200 (hora de verano de Europa central) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"My Printer" ; set printer name M669 K1 ; select CoreXY mode ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ; Drives M569 P0 S1 ; physical drive X goes forwards M569 P1 S1 ; physical drive Y goes forwards M569 P2 S1 ; physical drive Z goes forwards M569 P3 S1 ; physical drive E0 goes forwards M569 P4 S1 ; physical drive E1 goes forwards M569 P5 S1 ; physical drive Z goes forwards M569 P6 S1 ; physical drive Z goes forwards M584 X0 Y1 Z2:5:6 E3:4 ; set drive mapping M671 X176:305:46 Y3:285:285 S0.5 ; leadscrews at rear left, front middle and rear right M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E420.00:420.00 ; set steps per mm M566 X900.00 Y900.00 Z60.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z180.00 E1200.00:1200.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E250.00:250.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E800:800 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 X320 Y320 Z400 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 M950 S2 C"exp.heater5" ; create servo pin 0 for BLTouch M558 P9 C"^zprobe.in" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds M574 Z1 S2 ; set endstop controlled by probed G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X15:215 Y15:195 S20 ; define mesh grid ; Heaters M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; 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 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C 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 M308 S2 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp M950 H2 C"e1heat" T2 ; create nozzle heater output on e0heat and map it to sensor 1 M307 H2 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit M143 H2 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 M563 P1 D1 H2 F0 ; define tool 1 G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets G10 P1 R0 S0 ; set initial tool 0 active and standby temperatures to 0C ; Custom settings are not defined ; Miscellaneous M575 P1 S1 B57600 ; enable support for PanelDue; bed.g ; called to perform automatic bed compensation via G32 ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Sat Apr 10 2021 17:47:01 GMT+0200 (hora de verano de Europa central) M561 ; clear any bed transform G28 ; home M401 ; deploy Z probe (omit if using bltouch) G30 P0 X176 Y3 Z-99999 ; probe near a leadscrew G30 P1 X305 Y285 Z-99999 ; probe near a leadscrew G30 P2 X46 Y285 Z-99999 S3 ; probe near a leadscrew and calibrate 3 motors M402 ; retract probe (omit if using bltouch) - Hello, I have a problem with a BLV MGN with Duet Wifi and RepRapFirmware 3, "Leveling the bed with several independent Z motors",
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@charli55 one thing you don't need is M401/M402 in your bed file as thats handled by the firmware.
Were there any outputs?
Having S0.5 on M671 limits the adjustment to anything out of whack more than 0.5. I suggest increasing this value above what you expect the maximum out of level to be, e.g. S10Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is
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I change it, try and comment, thank you.
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@charli55 you can’t do a triple z axis solution with just a duet2wifi. You need a duex2 or duex5 expansion board. Your config.g seems to suggest that you haven’t done this. We have a very strong blv community on Facebook and now our own discord server for this; I also am one of the two main people that have done the independent triple z axis redesigns that are used on it. I’m happy to help you through it.
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@nuramori why does it suggest that? he's mapped drivers 5 and 6 to Z, suggesting 3 drivers being used.
Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is
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@nuramori M584 X0 Y1 Z2:5:6 E3:4
I have duet wifi + duex5 -
@jay_s_uk just a brain fart. I’ve gotten used to the preceding nomenclature for drivers like 0.1, 1.2 so it looked like there wasn’t an expansion board associated with it. My bad.
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@jay_s_uk M671 X176:305:46 Y3:285:285 S1.0
The engines still do not move
Z -
@charli55 is there any output in the console?
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@jay_s_uk Error: Compensation or calibration cancelled due to probing errors
13/4/2021 20:28:34 g32
Error: Z probe was not triggered during probing move -
@charli55
If it is true that it is not activated in the first spindle, the red IR LED does not turn on -
@charli55
Does the z-probe work in the center of the bed? Maybe you have to increase the 'dive height' of the z-probe? -
But I don't know what happens if the bed almost touches the IR
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Thanks, it's already solved. Spindle adjustments made: -0.287 -0.128 -0.303, points used 3, (mean, deviation) before (-0.238, 0.079) after (0.000, 0.000
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@charli55 said in Bed levelling using multiple independent Z motors:
Thanks, it's already solved. Spindle adjustments made: -0.287 -0.128 -0.303, points used 3, (mean, deviation) before (-0.238, 0.079) after (0.000, 0.000
your dive height isn't high enough to accomodate the bed skew
