Printer Not hitting any of the endstops

rodneysramosj

config.g configtool.json homeall.g homex.g homey.g homez.g

Here is the files we've read through them plenty of times and cant figure it out.
we've made sure that endstops are wired correctly. Printer doesnt reach any of the endstops when homing.

jay_s_uk

@rodneysramosj are you steps per mm correct? Is it moving the correct amount for the distance commanded?
How big is the printer?

I also don't see any endstops configured in your config

droftarts

@rodneysramosj Here's your config.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

; General Settings
G90                      ; use absolute coordinates
M83                      ; relative extruder moves
M550 P"Duet 3"           ; set hostname

; PanelDue Setup
M575 P1 S1 B115200       ; configure PanelDue support

; Network Configuration
M551 P"Password1"        ; set machine password
M552 P192.168.1.20 S1    ; configure Ethernet adapter
M553 P255.255.255.0      ; set netmask
M554 P192.168.1.254     ; set gateway
M586 P0 S1               ; configure HTTP

; Smart Drivers Setup
M569 P0.0 S1 D2          ; driver 0.0 goes forwards (X axis)
M569 P0.1 S1 D2          ; driver 0.1 goes forwards (Y axis)
M569 P0.2 S1 D2          ; driver 0.2 goes forwards (Z axis)
M569 P0.3 S1 D2          ; driver 0.3 goes forwards (extruder 0)

; Motor Idle Current Reduction
M906 I30                 ; set motor current idle factor
M84 S30                  ; set motor current idle timeout

; Axes Configuration
M584 X0.0 Y0.1 Z0.2      ; set axis mapping
M350 X16 Y16 Z16 I1      ; configure microstepping with interpolation
M906 X2800 Y2800 Z6000   ; set axis driver currents
M92 X53.33 Y53.33 Z400   ; configure steps per mm
M208 X0:1060 Y0:530 Z0:1000 ; set min/max axis limits
M566 X3000 Y3000 Z60     ; set max instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180    ; set max speeds (mm/min)
M201 X500 Y500 Z20       ; set accelerations (mm/s^2)

; Extruder Configuration
M584 E0.3                ; set extruder mapping
M350 E16 I1              ; configure microstepping with interpolation
M906 E450                ; set extruder driver currents
M92 E2682                ; configure steps per mm
M566 E120                ; set max instantaneous speed changes (mm/min)
M203 E3600               ; set max speeds (mm/min)
M201 E250                ; set accelerations (mm/s^2)

; Probes
M558 K0 P1 C"io5.in" H2.5 F120 T6000 ; configure analog probe
G31 P500 X0 Y0 Z3.5              ; set Z probe trigger value, offset, and trigger height

; Temperature Sensors Configuration
M308 S0 P"temp0" Y"thermistor" A"Heated Bed Set 0" T200000 B3950 C6.370029e-8   ; Heated bed sensor
M308 S1 P"temp1" Y"thermistor" A"Heated Bed Set 1" T200000 B3950 C6.370029e-8   ; Heated bed sensor 2
M308 S2 P"temp2" Y"thermistor" A"Roto Internal Temp" T100000 B4267 C7.046861e-8 ; Internal temp sensor
M308 S3 P"121.temp0" Y"thermistor" A"Roto Extruder Temp" T100000 B4267 C7.046861e-8 ; Extruder temp sensor

; Heaters Setup
M950 H0 C"out1" T0        ; create heater #0 linked to temp sensor 0
M143 H0 S120              ; set max temp for heater 0 (120°C for example)
M307 H0 R2.43 D5.5 E1.35 K0.56 B1  ; heater model for heater 0

M950 H1 C"121.out0" T3    ; create heater #1 linked to temp sensor 3 (extruder)
M143 H1 S300              ; set max temp for heater 1
M307 H1 R2.43 D5.5 E1.35 K0.56 B0  ; heater model for heater 1

M950 H2 C"out2" T1        ; create heater #2 linked to temp sensor 1 (another heated bed)
M143 H2 S120              ; set max temp for heater 2
M307 H2 R2.43 D5.5 E1.35 K0.56 B1  ; heater model for heater 2

; Heated Beds Configuration
M140 P0 H0                ; configure heated bed #0 (linked to heater 0)
M140 P2 H2                ; configure heated bed #2 (linked to heater 2)

; Fans Configuration
M950 F0 C"out4+out4.tach" ; create fan #0
M106 P0 C"Roto Fan" S0 B10 H2 T45 ; configure fan #0

; Tools Configuration
M563 P0 S"Roto Toolboard" D0 H1 F0 ; create tool #0, link to heater 1
M568 P0 R0 S0              ; set initial temperatures for tool #0 to 0°C

; Miscellaneous
T0 ; select first tool

; Custom Settings for Safety
M950 J4 C"!^io4.in"        ; create E-Stop button
M581 P4 S0 T0 R0           ; trigger E-Stop on input

; End of File

As @jay_s_uk says, there are no endstops configured, only a Z probe. See https://docs.duet3d.com/User_manual/Connecting_hardware/Sensors_endstops and https://docs.duet3d.com/en/How_to_guides/Commissioning#h-8-check-endstops

Your homeall.g file has the motors moving to the 'low end' of the X and Y axis, ie towards X0 and Y0. Is that where the endstops are positioned?

Ian

rodneysramosj

@jay_s_uk ```
code_text

; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.5.10 on Wed Feb 26 2025 14:22:18 GMT-0500 (Eastern Standard Time)

; General
G90 ; absolute coordinates
M83 ; relative extruder moves
M550 P"Duet 3" ; set hostname

; Accessories
M575 P1 S1 B57600 ; configure PanelDue support

; Network
M551 P"Password1" ; set machine password
M552 P192.168.1.20 S1 ; configure Ethernet adapter
M553 P255.255.255.0 ; set netmask
M554 P192.168.1.254 ; set gateway
M586 P0 S1 ; configure HTTP

; Wait a moment for the CAN expansion boards to become available
G4 S2

; Smart Drivers
M569 P0.0 S0 D2 ; driver 0.0 goes forwards (X axis)
M569 P0.1 S0 D2 ; driver 0.1 goes forwards (Y axis)
M569 P0.2 S0 D2 ; driver 0.2 goes forwards (Z axis)
M569 P0.3 S1 D2 ; driver 0.3 goes forwards (extruder 0)

; Motor Idle Current Reduction
M906 I30 ; set motor current idle factor
M84 S30 ; set motor current idle timeout

; Axes
M584 X0.0 Y0.1 Z0.2 ; set axis mapping
M350 X16 Y16 Z16 I1 ; configure microstepping with interpolation
M906 X2800 Y2800 Z6000 ; set axis driver currents
M92 X53.33 Y53.33 Z400 ; configure steps per mm
M208 X0:1060 Y0:530 Z0:1000 ; set minimum and maximum axis limits
M566 X3000 Y3000 Z60 ; set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 ; set maximum speeds (mm/min)
M201 X500 Y500 Z20 ; set accelerations (mm/s^2)

; Extruders
M584 E0.3 ; set extruder mapping
M350 E16 I1 ; configure microstepping with interpolation
M906 E450 ; set extruder driver currents
M92 E2682 ; configure steps per mm
M566 E120 ; set maximum instantaneous speed changes (mm/min)
M203 E3600 ; set maximum speeds (mm/min)
M201 E250 ; set accelerations (mm/s^2)

; Probes
M558 K0 P1 C"io5.in" H2.5 F120 T6000 ; configure analog probe via slot #0
G31 P500 X0 Y0 Z3.5                  ; set Z probe trigger value, offset and trigger height

; Kinematics
M669 K0 ; configure Cartesian kinematics

; Endstops
M574 X1 P"io3.in" S1 ; configure X axis endstop
M574 Y1 P"io1.in" S1 ; configure Y axis endstop
M574 Z1 P"io2.in" S1 ; configure Z axis endstop

; Sensors
M308 S0 P"temp0" Y"thermistor" A"Heated Bed Set 0" T200000 B3950 C6.370029e-8 ; configure sensor #0
M308 S1 P"temp1" Y"thermistor" A"Heated Bed Set 1" T200000 B3950 C6.370029e-8 ; configure sensor #1
M308 S2 P"temp2" Y"thermistor" A"Roto Internal Temp" T100000 B4267 C7.046861e-8 ; configure sensor #2
M308 S3 P"121.temp0" Y"thermistor" A"Roto Extruder Temp" T100000 B4267 C7.046861e-8 ; configure sensor #3

; Heaters
M950 H0 C"out1" T0 ; create heater #0
M143 H0 P0 T0 C0 S120 A0 ; configure heater monitor #0 for heater #0
M307 H0 R0.43 D5.5 E1.35 K0.56 B1 ; configure model of heater #0
M950 H1 C"121.out0" T3 ; create heater #1
M143 H1 P0 T3 C0 S300 A0 ; configure heater monitor #0 for heater #1
M307 H1 R0.43 D5.5 E1.35 K0.56 B0 ; configure model of heater #1
M950 H2 C"out2" T1 ; create heater #2
M143 H2 P0 T1 C0 S120 A0 ; configure heater monitor #0 for heater #2
M307 H2 R0.43 D5.5 E1.35 K0.56 B1 ; configure model of heater #2

; Heated beds
M140 P0 H0 ; configure heated bed #0
M140 P2 H2 ; configure heated bed #2

; Tools
M563 P0 S"Roto Toolboard" D0 H1 F0 ; create tool #0
M568 P0 R0 S0 ; set initial tool #0 active and standby temperatures to 0C

; Fans
M950 F0 C"out0+out5.tach"         ; create fan #0
M106 P0 C"Roto Fan" S0 B10 H2 T60:59 ; configure fan #0

; Miscellaneous
T0 ; select first tool

; Custom settings
;E-Stop
M950 J4 C"!^io4.in"
M581 P4 S0 T0 R0

Sorry File mustve not fully sent they are configured

rodneysramosj

@rodneysramosj our printer is 1220 by 610mm and yes the steps are correct it moves 10mm when told

rodneysramosj

@droftarts yes they are on the low end of the printer and in my other replies there is the correct config file and it is the one we are actively using.

jay_s_uk

@rodneysramosj said in Printer Not hitting any of the endstops:

M208 X0:1060 Y0:530 Z0:1000 ; set minimum and maximum axis limits

this shows your printer only being 1060mm wide. This number should be the same as the maximum print size, otherwise your motors will end up moving short

rodneysramosj

@jay_s_uk said in Printer Not hitting any of the endstops:

M208

We have set the dimensions correctly in the g code and has not resolved the issue and the printer only gives a slight movement in all directions depending on the home and says that it is home and hasn't hit any estops.

jay_s_uk

@rodneysramosj have you tested the endstops?
You can either look at DWC for this, a green box appears on each axis letter to show you its triggered, or use M119.
They should show not triggered when not pressed and triggered when pressed.
If they are the wrong way round, you will need to invert them by adding a ! to the pin name for each applicable endstop

droftarts

@rodneysramosj As @jay_s_uk said, and I already posted, check the endstops are functioning correctly: https://docs.duet3d.com/en/How_to_guides/Commissioning#h-8-check-endstops

Ian

rodneysramosj

@jay_s_uk endstops are wired correct and they are triggering correctly through config. however, it is moving in the wrong direction now and in the opposite direction from the endstops. we tried changing it in the config tool from low end to high end and now they are currently swapped back after troubleshooting.

fcwilt

@rodneysramosj said in Printer Not hitting any of the endstops:

@jay_s_uk endstops are wired correct and they are triggering correctly through config. however, it is moving in the wrong direction now and in the opposite direction from the endstops. we tried changing it in the config tool from low end to high end and now they are currently swapped back after troubleshooting.

If the movement is not towards the end-stops you need to check your homing code to see if it is using moves in the correct direction.

Frederick

rodneysramosj

@fcwilt we got it to a point where it hits the endstops but it stays stopped on the endstops and doesnt come back out.

fcwilt

@rodneysramosj said in Printer Not hitting any of the endstops:

@fcwilt we got it to a point where it hits the endstops but it stays stopped on the endstops and doesnt come back out.

Does your code command it to back out?

Frederick

rodneysramosj

@fcwilt were trying to make it retract here is our code it is currently hitting the end stop and then continues to go past the Endstop until the endstop is hit again then it fully stops. changing the back off distance from positive to negative doesn't change the way it moves. it is currently set to 5 for visibility. we are testing the endstops by hand and not by carriage. ```

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.5.10 on Wed Mar 19 2025 10:03:37 GMT-0400 (Eastern 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 X
G91 ; relative positioning
var maxTravel = move.axes[0].max - move.axes[0].min + 5 ; calculate how far X can travel plus 5mm
G1 H1 X{var.maxTravel} F1200 ; coarse home in the -X direction
G4 P500
G1 X-75 F6000 ; move back 5mm
M400 
G1 H1 X{var.maxTravel} F300 ; fine home in the -X direction
G90 ; absolute positioning

; decrease Z again
;G91 ; relative positioning
;G1 H2 Z-5 F6000 ; move Z relative to current position
;G90 ; absolute positioning

```

droftarts

@rodneysramosj Is the X endstop a max endstop or min endstop? Currently your G1 H1 X... homing moves are positive, so should be moving to the right, towards a max endstop. If this is wrong, you probably need to check the direction the motors are moving is correct, see https://docs.duet3d.com/en/How_to_guides/Commissioning#h-10-check-stepper-motors

Your printer origin X0 Y0 Z0 should be in the front left corner. Positive X moves should move the nozzle to the right, positive Y moves should move the nozzle towards the back.

Ian