an8 blv mod duet 2 wifi calibration
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good day ok i got a question . i got my duet working bl touch and all i printed a 20mm x 20mm test cube .
sliced in cura . cura shows its right 20 x 20 mm . i do a print and my x and z are good but my y is 25mm
i verified all my motors are the same model and type . so i am 20mm x 25mm x 20mm cube . here is my config file .
should i just change my y steps or should i do something else ?
; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.1.4 on Thu Jul 23 2020 14:47:56 GMT+0300 (Arabian Standard Time); General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Anet A8" ; 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 S0 ; physical drive 0 goes backwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S0 ; physical drive 2 goes backwards
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 X100.00 Y100.00 Z400.00 E409.00 ; set steps per mm
M566 X600.00 Y600.00 Z18.00 E300.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E6000.00 ; set maximum speeds (mm/min)
M201 X1500.00 Y1500.00 Z100.00 E10000.00 ; set accelerations (mm/s^2)
M906 X500 Y500 Z500 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Axis Limits
M208 X-10 Y0 Z0 S1 ; set axis minima
M208 X220 Y190 Z240 S0 ; set axis maxima; Endstops
M574 X1 S1 P"!xstop" ; configure active-low endstop for low end on X via pin xstop
M574 Y1 S1 P"!ystop" ; configure active-low endstop for low end on Y via pin ystop
;M574 Z1 S1 P"!zstop" ; configure active-low endstop for low end on Z via pin zstop
M574 Z0 ; configure Z-probe endstop on Z; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H5 F120 T2000 ; set Z probe type to bltouch and the dive height + speeds
G31 P500 X-42 Y-40 Z1.067 ; set Z probe trigger value, offset and trigger height
M557 X15:220 Y15:190 S50 ; define mesh grid; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4725 C7.06e-8 ; 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 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S130 ; set temperature limit for heater 0 to 130C
M308 S1 P"e0temp" Y"thermistor" T100000 B4725 C7.06e-8 ; 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; 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
M575 P1 S1 B57600 ; enable support for PanelDue
T0 ; select first tool
M501
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@morf33 your config looks ok, but for Y you must verify M92 X100.00 Y100.00 Z400.00 E409.00
Maybe the steps/mm is different, verify the count of your teeth, it may be different.16 teeth: 200 steps per rotation * 16 microteps / 32 mm per rotation = 100.
20 teeth: 200 steps per rotation * 16 microteps / 40 mm per rotation = would be 80.
Seems you have 20 teeth at the Y stepper and with the M92 you get more distance than planned. (16=>20 is 1/4 more, 20/4 mm is 5 mm more, this would match).I would also change M557. You should take into account the probe offset and start M557 with x40 and Y50. I would use more points for mesh compensation (S value lower or use the P parameter), but it depends on how flat your bed is, i.e. how important mesh compensation is for you.
