Printer bed level incositancy/ G29 not working
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Hi All,
After getting the BLtouch working, Thank you to those who helped me! ive now got to the point of printing but not having much luck...
Ive set the Y trigger offset value according to the instructions and run the mesh bed level with G29 but in printing, it doesn't seem to take this into account. the area i do the trigger value calibration is correct but it won't follow the bed level profile... am i missing a Gcode to activate this in a print to offset correctly?
Its a pretty big bed that's solid and doesn't move so it does bow a bit, thought the Duet mesh was meant to compensate...
; Configuration file for Duet WiFi (firmware version 3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.1.4 on Mon Sep 14 2020 09:23:59 GMT+0100 (British Summer Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"XL Printer" ; set printer name ; 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 0 goes forwards M569 P1 S1 ; physical drive 1 goes forwards M569 P2 S1 ; physical drive 2 goes forwards M569 P7 S1 ; physical drive 7 goes forwards M584 X0 Y1:4 Z2 E3 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X80.00 Y80.00 Z400.00 E150.00 ; set steps per mm M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min) M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min) M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2) M906 X800 Y1500:1500 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X30 Y0 Z0 S1 ; set axis minima M208 X630 Y350 Z350 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 S0 C"exp.heater7" ; 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 G31 P25 X6.2 Y42 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X60:400 Y15:300 S75 ; 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 M307 H7 A-1 C-1 D-1 ; 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 M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
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Do you want to make the Mesh Bed Comp. at the beginning of every print ?
I so put a G29 S0 in the startcode.
If you want to make the calibration once and only want to load the heighmap put a G29 S1 into the start code.
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So for example i make the compensation before every print because i vary the bed temp alot.
so my startcode in the prusa slicer is
G90 ; use absolute coordinates M83 ; extruder relative mode M104 S[first_layer_temperature] ; set extruder temp M140 S[first_layer_bed_temperature] ; set bed temp M190 S[first_layer_bed_temperature] ; wait for bed temp M109 S[first_layer_temperature] ; wait for extruder temp G28 ; home all G29 S0; G1 Z2 F240 G1 X2 Y10 F3000 G1 Z0.28 F240 G92 E0.0 G1 Y100 E8.0 F1500.0 ; intro line G1 X2.3 F5000 G1 Y10 E8 F1200.0 ; intro line G92 E0.0