Z Babystepping Not Working Properly
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I posted a few weeks ago here about getting sensorless homing working, which I have gotten working now. However, now, Z babystepping is not working properly. When I use .05mm babystepping, it appears to not work at all, when I tried setting it to 5mm, when I told it to babystep 5mm, it only moves about one. My steps/mm are correct, I'm not sure what could be causing this. Thanks in advance for any help!
Here's my current config.g, let me know if you need any other files.
; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed Jun 30 2021 18:28:51 GMT-0400 (Eastern Daylight Time) ; General preferences G90 ; send absolute coordinates... M83 ; ...but relative extruder moves M550 P"Hermione" ; 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 P0.0 S0 V20 ; physical drive 0.0 goes forwards M569 P0.1 S1 V20 ; physical drive 0.1 goes forwards M569 P0.2 S0 V20 ; physical drive 0.2 goes forwards M569 P0.3 S0 V20 ; physical drive 0.3 goes forwards M569 P0.4 S0 V20 M584 X0 Y1 Z2:4 E3 ; two Z motors connected to driver outputs Z and E1 M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation M92 X100.00 Y100.00 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 X9000.00 Y9000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min) M201 X1250.00 Y1000.00 Z120.00 E250.00 ; set accelerations (mm/s^2) M906 X600 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 X240 Y205 Z210 S0 ; set axis maxima ; Endstops M574 X1 S3 ; configure sensorless endstop for low end on X M574 Y1 S3 ; configure sensorless endstop for low end on Y M915 X S3 R1 F0 ; M915 Y S3 R1 F0 ; ; Z-Probe M558 P5 C"^io2.out" H1 F1000 T6000 A3 ; Prusa PindaV2 Endstop M308 S2 P"temp2" A"Pinda V2" Y"thermistor" T100000 B3950 ; Prusa PindaV2 Thermistor G31 P1000 X35.75 Y18.7 Z.2 ; Nozzle offset M574 Z1 S2 ; Set Z axis endstop, controlled by probe M557 X35.75:204 Y18.7:200 P3 ; Define mesh grid for probing M376 H5 ; Fade height 5mm ; Heaters M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0 M950 H0 C"out0" T0 ; create bed heater output on out0 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 M307 H0 R0.295 C369.7 D10.32 S1.00 V23.8 ; control parameters for H0 M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1 M950 H1 C"out1" T1 ; create nozzle heater output on out1 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"out5" Q500 ; M106 P0 C"Part Cooling" S0 H-1 ; ; M950 F1 C"out6" Q500 ; M106 P1 C"Hotend" S1 H1 T45 ; ; ; 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 ; Dual Z steppers M671 X 10:240 Y0:0 S1 ; leadscrews at left (connected to Z) and right (connected to E1) of X axis ; Custom settings are not defined``` -
@3dmakerkid is this baby stepping beneath the build surface?
you can't go below the Z minima you've set in the firmware, which in this case isM208 X0 Y0 Z0 S1
Set it to Z-1 and you should be able to go lowerOwns 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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@3dmakerkid said in Z Babystepping Not Working Properly:
M671 X 10:240 Y0:0 S1 ;
OT:
Is the left leadscrew 10mm 'inside' the printable area? Or should it be X -10:240? -
@jay_s_uk It's happening when I try to babystep up and down, no matter what my Z position is at that time. I'll switch that and see if it helps though.
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If you need much babystepping, I have to ask, is your trigger height correct?
G31 P1000 X35.75 Y18.7 Z.2
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@phaedrux I'm starting to wonder if it is, because now the Z probe isn't even triggering during probing moves during G29.
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A 0.2mm trigger height is pretty low. The nozzle would be just about to hit the bed. Do you have the probe mounted too high perhaps?
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@phaedrux That could be it, I'll look into trying to fix that.
