dual motor z axis bed leveling not probing by lead screws
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I think I have followed the guide to set up bed levelling using the independent Z motor guide. I can't seem to get the probe (BL Touch) to probe anywhere close to the lead screws nor can I get the probe to probe by each lead screw. I can get it to probe twice but it probes the same place. I am sure I am missing something somewhere any help would be great. Setup details below. The lead screws are on the right and left in the middle of the Y axis.
Thank you all for your help and time.
Hardware 6HC
Kinematics Core XY 330x330x400Confi.g
; Configuration file for RepRapFirmware on Duet 3 Main Board 6HC ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.5.10 on Sat Mar 15 2025 15:53:22 GMT-0700 (Pacific Daylight Time) ; General G90 ; absolute coordinates M83 ; relative extruder moves M550 P"Duet 3D" ; set hostname ; Accessories M575 P1 S0 B57600 ; configure PanelDue support ; Smart Drivers M569 P0.0 S1 D2 ; driver 0.0 goes forwards (Z axis) M569 P0.1 S1 D2 ; driver 0.1 goes forwards (extruder 0) M569 P0.2 S1 D2 ; driver 0.2 goes forwards (extruder 1) M569 P0.3 S1 D2 ; driver 0.3 goes forwards (z axis) M569 P0.4 S1 D2 ; driver 0.4 goes forwards (X axis) M569 P0.5 S0 D2 ; driver 0.5 goes backwards (Y axis) ; Motor Idle Current Reduction M906 I30 ; set motor current idle factor M84 S30 ; set motor current idle timeout ; Axes M584 X4 Y5 Z0.0:0.3 E3 ; set axis mapping 2 z motors 0 left motor 3 right motor M671 X45:320 Y155:155 S2 ; position of lead screw M208 X-8:330 Y-14:330 Z0:390 'z0:390 ; set minimum and maximum axis limits M350 X16 Y16 Z16 'z16 I1 ; configure microstepping with interpolation M906 X800 Y800 Z800 'z800 ; set axis driver currents M92 X80 Y80 Z400 'z400 ; configure steps per mm M566 X900 Y900 Z12 'z12 ; set maximum instantaneous speed changes (mm/min) M203 X6000 Y6000 Z180 'z180 ; set maximum speeds (mm/min) M201 X500 Y500 Z20 'z20 ; set accelerations (mm/s^2) ; Extruders M584 E0.1:0.2 ; set extruder mapping M350 E16:16 I1 ; configure microstepping with interpolation M906 E1000:1000 ; set extruder driver currents M92 E407.25:420 ; configure steps per mm M566 E120:120 ; set maximum instantaneous speed changes (mm/min) M203 E3600:3600 ; set maximum speeds (mm/min) M201 E250:250 ; set accelerations (mm/s^2) ; Kinematics M669 K1 ; configure CoreXY kinematics ; Probes M558 K0 P9 C"io5.in" H5 F120 T6000 ; configure BLTouch probe via slot #0 G31 X-70 Y-70 Z5.25 ; set Z probe trigger value, offset and trigger height M950 S0 C"io5.out" ; create servo #0 for BLtouch ; Endstops M574 X1 S1 P"!io3.in" ; configure X axis endstop high end stop M574 Y1 S1 P"!io1.in" ; configure Y axis endstop high end stop M574 Z1 S2 ; configure Z axis endstop low end stop M574 'z1 S2 ; configure z axis endstop ; Mesh Bed Compensation M557 X25:305 Y25:305 S40:40 ; define grid for mesh bed compensation ; Sensors M308 S0 P"temp0" Y"thermistor" A"Heated Bed" T100000 B4725 C7.06e-8 ; configure sensor #0 M308 S1 P"temp1" Y"thermistor" A"Nozzle" T100000 B4725 C7.06e-8 ; configure sensor #1 ; Heaters M950 H0 C"out0" T0 ; create heater #0 M143 H0 P0 T0 C0 S140 A0 ; configure heater monitor #0 for heater #0 M307 H0 R0.208 D3.93 E1.35 K0.231:0.000 B0 S1 ; configure model of heater #0 M307 H0 R0.208 K0.231:0.000 D3.93 E1.35 S1.00 B0 M950 H1 C"out1" T1 ; create heater #1 M143 H1 P0 T1 C0 S285 A0 ; configure heater monitor #0 for heater #1 M307 H1 R2.282 D8.60 E1.35 K0.430:0.256 B0 S1 ; configure model of heater #1 M307 H1 R2.282 K0.430:0.256 D8.60 E1.35 S1.00 B0 V24.0 ; Heated beds M140 P0 H0 ; configure heated bed #0 ; Fans M950 F0 C"out7" ; create fan #0 M106 P0 C"Tool Fan" S0 L0 X1 B0.1 ; configure fan #0 M950 F1 C"out8" ; create fan #1 M106 P1 C"Part Fan" S0 B0.1 H1 T45 ; configure fan #1 ; Tools M563 P0 S"Extruder 1" D0 H1 F0 ; create tool #0 M568 P0 R0 S0 ; set initial tool #0 active and standby temperatures to 0C M563 P1 S"Extruder 2" D1 H1 F0 ; create tool #1 M568 P1 R0 S0 ; set initial tool #1 active and standby temperatures to 0C M501BED.G
; bed.g ; called to level the bed ; ; generated by RepRapFirmware Configuration Tool v3.5.10 on Sat Mar 15 2025 15:53:22 GMT-0700 (Pacific Daylight Time) M561 G28 ; home while true G30 P0 X10 Y165 Z-99999 ; probe near a leadscrew, half way along Y axis G30 P1 X310 Y165 Z-99999 S2 ; probe near a leadscrew and calibrate 2 motors if abs(move.calibration.initial.deviation) < 0.01 || iterations > 3 break G29 ; call mesh bed compensationhomeall.g
; homeall.g ; called to home all axes ; ; generated by RepRapFirmware Configuration Tool v3.5.10 on Tue Mar 25 2025 19:59:18 GMT-0700 (Pacific Daylight Time) ; increase Z G91 ; relative positioning G1 H2 Z5 F6000 ; move Z relative to current position to avoid dragging nozzle over the bed G90 ; absolute positioning ; home XY var xTravel = move.axes[0].max - move.axes[0].min + 5 ; calculate how far X can travel plus 5mm var yTravel = move.axes[1].max - move.axes[1].min + 5 ; calculate how far Y can travel plus 5mm G91 ; relative positioning G1 H1 X{-var.xTravel} Y{-var.yTravel} F600 ; coarse home G1 H1 X{-var.xTravel} F600 ; coarse home in the -X direction G1 H1 Y{-var.yTravel} F600 ; coarse home in the -Y direction G1 X5 Y5 F6000 ; move back 5mm G1 H1 X{-var.xTravel} Y{-var.yTravel} F300 ; fine home G1 H1 X{-var.xTravel} F300 ; fine home in the -X direction G1 H1 Y{-var.yTravel} F300 ; fine home in the -Y direction G90 ; absolute positioning ; home Z var xCenter = move.compensation.probeGrid.mins[0] + (move.compensation.probeGrid.maxs[0] - move.compensation.probeGrid.mins[0]) / 2 - sensors.probes[0].offsets[0] var yCenter = move.compensation.probeGrid.mins[1] + (move.compensation.probeGrid.maxs[1] - move.compensation.probeGrid.mins[1]) / 2 - sensors.probes[0].offsets[1] G1 X{var.xCenter} Y{var.yCenter} F6000 ; go to bed centre G30 ; probe the bed M98 P"home'z.g" ; home z axisM122
M122 === Diagnostics === RepRapFirmware for Duet 3 MB6HC version 3.5.4 (2024-11-24 10:47:10) running on Duet 3 MB6HC v1.02 or 1.02a (SBC mode) Board ID: 08DJM-9P63L-DJ3S0-7J9D8-3SN6P-TVMBA Used output buffers: 1 of 40 (33 max) === RTOS === Static ram: 155464 Dynamic ram: 90400 of which 4284 recycled Never used RAM 92916, free system stack 94 words Tasks: SBC(2,ready,0.8%,789) HEAT(3,nWait 6,0.0%,321) Move(4,nWait 6,0.0%,242) CanReceiv(6,nWait 1,0.0%,939) CanSender(5,nWait 7,0.0%,334) CanClock(7,delaying,0.0%,334) TMC(4,nWait 6,9.1%,55) MAIN(2,running,90.0%,101) IDLE(0,ready,0.0%,29), total 100.0% Owned mutexes: HTTP(MAIN) === Platform === Last reset 00:40:01 ago, cause: software Last software reset at 2025-04-02 16:24, reason: User, Gcodes spinning, available RAM 92868, slot 1 Software reset code 0x6003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x00400000 BFAR 0x00000000 SP 0x00000000 Task SBC Freestk 0 n/a Error status: 0x00 Aux0 errors 0,0,0 MCU temperature: min 34.4, current 34.8, max 35.3 Supply voltage: min 23.9, current 24.0, max 24.1, under voltage events: 0, over voltage events: 0, power good: yes 12V rail voltage: min 12.0, current 12.2, max 12.5, under voltage events: 0 Heap OK, handles allocated/used 99/0, heap memory allocated/used/recyclable 2048/72/72, gc cycles 0 Events: 0 queued, 0 completed Driver 0: standstill, SG min 0, mspos 872, reads 59248, writes 21 timeouts 0 Driver 1: standstill, SG min n/a, mspos 8, reads 59253, writes 16 timeouts 0 Driver 2: standstill, SG min n/a, mspos 8, reads 59253, writes 16 timeouts 0 Driver 3: standstill, SG min 0, mspos 872, reads 59248, writes 21 timeouts 0 Driver 4: standstill, SG min 0, mspos 120, reads 59248, writes 21 timeouts 0 Driver 5: standstill, SG min 0, mspos 568, reads 59248, writes 21 timeouts 0 Date/time: 2025-04-02 17:04:49 Slowest loop: 25.81ms; fastest: 0.04ms === Storage === Free file entries: 20 SD card 0 not detected, interface speed: 37.5MBytes/sec SD card longest read time 0.0ms, write time 0.0ms, max retries 0 === Move === DMs created 125, segments created 3, maxWait 39528ms, bed compensation in use: none, height map offset 0.000, max steps late 0, min interval 0, bad calcs 0, ebfmin 0.00, ebfmax 0.00 no step interrupt scheduled Moves shaped first try 0, on retry 0, too short 0, wrong shape 0, maybepossible 0 === DDARing 0 === Scheduled moves 14, completed 14, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === DDARing 1 === Scheduled moves 0, completed 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1 === Heat === Bed heaters 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamber heaters -1 -1 -1 -1, ordering errs 0 === GCodes === Movement locks held by null, null HTTP* is doing "M122" in state(s) 0 Telnet is idle in state(s) 0 File is idle in state(s) 0 USB is idle in state(s) 0 Aux is idle in state(s) 0 Trigger* is idle in state(s) 0 Queue is idle in state(s) 0 LCD is idle in state(s) 0 SBC is idle in state(s) 0 Daemon is idle in state(s) 0 Aux2 is idle in state(s) 0 Autopause is idle in state(s) 0 File2 is idle in state(s) 0 Queue2 is idle in state(s) 0 Q0 segments left 0, axes/extruders owned 0x0000007 Code queue 0 is empty Q1 segments left 0, axes/extruders owned 0x0000000 Code queue 1 is empty === CAN === Messages queued 21589, received 0, lost 0, errs 11392382, boc 0 Longest wait 0ms for reply type 0, peak Tx sync delay 0, free buffers 50 (min 50), ts 12010/0/0 Tx timeouts 0,0,12009,0,0,9578 last cancelled message type 4514 dest 127 === SBC interface === Transfer state: 5, failed transfers: 0, checksum errors: 0 RX/TX seq numbers: 27293/27293 SPI underruns 0, overruns 0 State: 5, disconnects: 0, timeouts: 0 total, 0 by SBC, IAP RAM available 0x24cfc Buffer RX/TX: 0/0-0, open files: 0 === Duet Control Server === Duet Control Server version 3.5.4 (2024-11-25 17:32:26, 64-bit) HTTP+Executed: > Executing M122 Code buffer space: 4096 Configured SPI speed: 8000000Hz, TfrRdy pin glitches: 0 Full transfers per second: 38.74, max time between full transfers: 53.7ms, max pin wait times: 36.3ms/5.0ms Codes per second: 0.16 Maximum length of RX/TX data transfers: 4436/864homez.g
; homez.g ; called to home the Z axis ; ; generated by RepRapFirmware Configuration Tool v3.5.10 on Sat Mar 15 2025 15:53:23 GMT-0700 (Pacific Daylight Time) ; increase Z G91 ; relative positioning G1 H2 Z5 ; move Z relative to current position to avoid dragging nozzle over the bed G90 ; absolute positioning ; home Z var xCenter = move.compensation.probeGrid.mins[0] + (move.compensation.probeGrid.maxs[0] - move.compensation.probeGrid.mins[0]) / 2 - sensors.probes[0].offsets[0] var yCenter = move.compensation.probeGrid.mins[1] + (move.compensation.probeGrid.maxs[1] - move.compensation.probeGrid.mins[1]) / 2 - sensors.probes[0].offsets[1] G1 X{var.xCenter} Y{var.yCenter} F6000 ; go to bed centre G30 ; probe the bedI have also been getting this in the console after connecting with the DWC
Endstop configuration: X: low end switch connected to pin !io3.in Y: low end switch connected to pin !(io1.in,serial1.rx) Z: low end Z probe -
In you config file you have the left lead screw at X45 but you are probing at X10 - how is that possible?
Frederick
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@Dlock34 said in dual motor z axis bed leveling not probing by lead screws:
M574 'z1 S2
The DWC message is provoked by that line because there is no 'z axis.
