Y-Axis after finished print moves to the front and crash

A Former User

Dear Duet Team

I have a question regarding the movement of my Y-Axis when the print is finished. I am using a Duet Mini 5+ in Ender 3.

The issue it is only reproduced when the print it is finished, inmediatly the Y-Axis move to the front of my Ender 3 and then crash with the limit of the bed Axis, because still trying to move forward.

I did some changes in my Config.g and my other files for Home.all and Y and X home

This issue did not happen when I am triggering "Home All" in the web interface. Also when I am cancelling the print this issue is not happening, it is only when the print it is finished.

Here is my Config.g

; Configuration file for Duet 3 Mini 5+ (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed May 19 2021 21:19:18 GMT+0200 (Mitteleuropäische Sommerzeit)

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"Ender3"                                     ; 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                                       ; physical drive 0.0 goes backwards
M569 P0.1 S0                                       ; physical drive 0.1 goes backwards
M569 P0.2 S1                                       ; physical drive 0.2 goes forwards
M569 P0.3 S0                                       ; physical drive 0.3 goes backwards
M584 X0.0 Y0.1 Z0.2 E0.3                           ; set drive mapping
M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E95.00                   ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E300.00                ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E3600.00            ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z200.00 E2500.00              ; set accelerations (mm/s^2)
M906 X600 Y600 Z600 E900 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 X235 Y235 Z260 S0                             ; set axis maxima

; Endstops									; configure active-high endstop for low end on Y via pin io6.in
M574 Y1 S1 P"io6.in"
M574 X1 S1 P"io5.in"
M574 Z1 S1 P"io2.in"                               ; configure active-high endstop for low end on Z via pin io2.in

; Z-Probe
M558 P8 C"io3.in" H5 F120 T6000                    ; disable Z probe but set dive height, probe speed and travel speed
G31 P500 X0 Y0 Z2.5
M557 X36:200 Y20:215 S30                           ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T98801 B4185        ; 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 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 S80                                        ; set temperature limit for heater 0 to 80C
M308 S1 P"temp1" Y"thermistor" T98801 B4185        ; 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 S240                                       ; set temperature limit for heater 1 to 240C

; Fans
M950 F0 C"out3" Q500                               ; create fan 0 on pin out3 and set its frequency
M106 P0 C"PartCool" S0 H-1                         ; set fan 0 name and value. Thermostatic control is turned off
M950 F1 C"out4" Q500                               ; create fan 1 on pin out4 and set its frequency
M106 P1 C"HotEnd" S1 H1:0 T45                      ; set fan 1 name and value. Thermostatic control is turned on
M950 F2 C"out5" Q500                               ; create fan 2 on pin out5 and set its frequency
M106 P2 C"CaseFan" S1 H1:0 T45                     ; set fan 2 name and value. Thermostatic control is turned on

; Tools
M563 P0 S"Hotend" 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
M501                                               ; load saved parameters from non-volatile memory
M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss
T0                                                 ; select first tool

Homeall.g

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed May 19 2021 21:19:18 GMT+0200 (Mitteleuropäische Sommerzeit)

G91                     ; relative positioning
G1 H2 Z5 F6000          ; lift Z relative to current position
G1 H1 X-240 Y-240 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000
G1 H1 X-240 Y-240 F360
G1 X120 Y90 F6000 ; position probe at center of bed
G30 ; probe for Z0
G29 S1  ; Enable mesh compensation

; Uncomment the following lines to lift Z after probing
;G91                    ; relative positioning
;G1 Z5 F100             ; lift Z relative to current position
;G90                    ; absolute positioning

Homey.g

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed May 19 2021 21:19:18 GMT+0200 (Mitteleuropäische Sommerzeit)

G91				; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y-240 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F6000    ; go back a few mm
G1 H1 Y-240 F360  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

Homex.g

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Wed May 19 2021 21:19:18 GMT+0200 (Mitteleuropäische Sommerzeit)
G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Z-265 F1800 ; move Z down until the endstop is triggered
G92 Z0            ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91              ; relative positioning
;G1 Z5 F100       ; lift Z relative to current position
;G90              ; absolute positioning

I hope I have explain correctly my situation, for sure is very easy to fix but I have tried multiple settings and still I am not able to fix it.

If you need the slicer from Cura I can share too

My slicer Start G-Code

M201 X500.00 Y500.00 Z200.00 E5000.00 ;Setup machine max acceleration
M203 X9000.00 Y9000.00 Z600.00 E6000.00 ;Setup machine max feedrate
M566 X900.00 Y900.00 Z60.00 E300.00
M204 P500.00 R1000.00 T500.00 ;Setup Print/Retract/Travel acceleration
M205 X8.00 Y8.00 Z0.40 E5.00 ;Setup Jerk
M220 S100 ;Reset Feedrate
M92 X80.00 Y80.00 Z400.00 E93.00 
M221 S100 ;Reset Flowrate

G28 ;Home

G29 S1
G92 E0 ;Reset Extruder
G1 Z8.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up

My slicer End G-Code

G91 ;Relative positioning
G1 E-2 F2700 ;Retract a bit
G1 E-2 Z0.2 F2400 ;Retract and raise Z
G1 X5 Y5 F3000 ;Wipe out
G1 Z10 ;Raise Z more
G90 ;Absolute positioning

G1 X0 Y{machine_depth} ;Present print
M106 S0 ;Turn-off fan
M104 S0 ;Turn-off hotend
M140 S0 ;Turn-off bed

M84 X Y E ;Disable all steppers but Z

cosmowave

@javcab I think something in your Endcode is wrong:

G1 X0 Y{machine_depth} ;Present print

What is your value for "machine_depth" ?

A Former User

@cosmowave Hi, thanks for the response.

If you mean to the depth of the size and travel of my bed in the Y-Axis, I am using 240mm, the standard used by Ender 3

Probably I am not understanding your question, please let me know.

Thank you again
Javier

cosmowave

@javcab In your slicer End-gcode line nr.8 is following code:

G1 X0 Y{machine_depth} ;Present print

Which value has your variable"machine_depth"?
I think, your printer moves to that Y position. When your variable "machine_depth" has a wrong value, then the printer can crash!

A Former User

@cosmowave I will try just G28, probably this will return all Axis to Homing position. As I mentioned, when I am homing the Axis the bed is not crashing

I will let you know

I forgot to mention. I have the Ender 6 and I saw in the End Code that is using G28 for returning to home all the Axis after finish the print

cosmowave

@javcab Eventually it is better to home only the X and Y axis with
"G28 X Y" at the end of a print.
But this is depending of your printer, if it can crash the Z axle into the printed object when homing!?

A Former User

@cosmowave Right, good advice. I will do the test. Thank you again for your time and looking to my problem

Phaedrux

@javcab said in Y-Axis after finished print moves to the front and crash:

G1 X0 Y{machine_depth} ;Present print

What does that value evaluate to in a sliced file? As in, what does that look like in a sliced gcode file?