Inconsistent z axis heights
Im still in the process of setting up my robo3d onto the duet 2 wifi,
Im finally at the point where i can mesh level the bed. Only when i try the z axis starts off at a normal height but mid way through the mesh level it stops because the zprobe has already been triggered.
Also my z heights are controlled by 2 motors and occasionally the carriage becomes out of level.
PaulHew last edited by
@joehsmash Please post your config.g and results from M115
; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
; generated by RepRapFirmware Configuration Tool v2.1.8 on Thu May 07 2020 17:04:03 GMT-0600 (Mountain Daylight Time)
; General preferences
M80 ; Turns on the ATX power supply
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"JoehBo3D" ; set printer name
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
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 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 X80.00 Y80.00 Z800.00 E743.38 ; set steps per mm
M566 X900.00 Y900.00 Z24.00 E240.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X9000.00 Y9000.00 Z100.00 E10000.00 ; set accelerations (mm/s^2)
M906 X935 Y935 Z935 E935 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 X228 Y254 Z203 S0 ; set axis maxima
M574 X1 Y1 S1 ; set active high endstops
M574 Z1 S2 ; set endstops controlled by probe
M558 P1 H5 F-120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
G31 P500 X-24 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20 ; define mesh grid
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M106 P0 S0 I0 F500 H1 T45 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S1 I0 F500 H1:1 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
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
And the M115
5/10/2020, 9:13:26 PM M115
FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.05.1 ELECTRONICS: Duet WiFi 1.02 or later FIRMWARE_DATE: 2020-02-09b1
so far i have verified all of my settings with my old firmware, with regards to speeds, and movement settings.
when i push it to move 5mm it moves 5 mm, or 10.
all my belts are tight, as well as bolts and carriages are level
What type of probe are you using?
You can use the probe to level the gantry if you switch to using two independently driven motors.
joehsmash last edited by joehsmash
@Phaedrux will this work even though i have both z axis motors plugged into the same z output? what i mean is that on the duet 2 wifi, there are 2 spots to plug in 2 motors.
i am using a optical ir probe, i initially had it installed on the z endstop, but seeing as its a smart probe i just plugged it into the probe header
@Phaedrux also i think this might overlap with my other post
@Phaedrux also another edit, i see that reading the gcode that it requires me to plug my second motor into e1. as if another extruder. i will try this.
how do i set up the e1 as a z motor though, i assume i will have to copy over all of the same settings (ie speed... etc) for the e1 motor
Alright so ive gone through the process of getting my second z axis motor running off e1, i will try some more in the morning
Sounds like you managed to figure it out. Let me know if you have any further issues.