Endstop instantly triggered when homing (y-axis)

Visionary

I got working other axes homing, but Y-axis does not seem to work. It is as if the endstop is immediately triggered when trying to move to endstop.

M119 Reports:
Endstops - X: not stopped, Y: not stopped, Z: not stopped, U: not stopped, Z probe: at min stop

The machine I have is markforged kinematics style idex-printer (one motor for each axis).

My homey.g file:

G91

G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y-405 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000       ; go back a few mm
G1 H1 Y-405 F600  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

; Configuration file for Duet 3 (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.0 on Tue Dec 29 2020 21:29:27 GMT+0200 (Itä-Euroopan normaaliaika)

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"My Printer"                                 ; set printer name                                
M669 K11 Y-1:-1:0:1  

; Network
M552 P0.0.0.0 S1                                   ; enable network and acquire dynamic address via DHCP
M586 P0 S1                                         ; enable HTTP
M586 P1 S0                                         ; disable FTP
M586 P2 S0                                         ; disable Telnet

; Drives
M569 P0.0 S1                              		   ; physical drive 0.0 goes forwards X
M569 P0.1 S1                               		   ; physical drive 0.1 goes forwards U
M569 P0.2 S1                                       ; physical drive 0.2 goes forwards Y
M569 P0.3 S1                                       ; physical drive 0.3 goes forwards Z
M569 P0.4 S0                                       ; physical drive 0.4 goes forwards E0
M569 P0.5 S0                                       ; physical drive 0.5 goes forwards E1

M584 X0.1 U0.0 Y0.2 Z0.3 E0.4:0.5                          ; set drive mapping
M350 X256 U256 Y256 Z64 I1                              ; configure microstepping without interpolation
M350 E64:256 I1                                       ; configure microstepping with interpolation
M92 X1280.00 U1280.00 Y1280.00 Z2560.00 E10800.00:1000          ; set steps per mm
M566 X600.00 U600.00 Y600.00 Z60.00 E40.00:300              ; set maximum instantaneous speed changes (mm/min)
M203 X12000.00 U12000.00 Y12000.00 Z180.00 E1800.00:1000          ; set maximum speeds (mm/min)
M201 X600.00 U600.00 Y600.00 Z20.00 E120.00:600                ; set accelerations (mm/s^2)
M906 X500 U500 Y500 Z700 E980:980 I45                    ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            ; Set idle timeout

M569 P0.0 V25 H25 D3  
M569 P0.1 V25 H25 D3                           
M569 P0.2 V25 H25 D3                         

M915 P0.0 S3 R0 H134 T25 F1	
M915 P0.1 S3 R0 H134 T25 F1			
M915 P0.2 S3 R0 H134 T25 F1

; Axis Limits
M208 X0 U0 Y0 Z0 S1                                   ; set axis minima
M208 X400 U400 Y400 Z375 S0                             ; set axis maxima

; Endstops
M574 X1 S1 P"!^io1.in"                             ; configure active-high endstop for low end on X via pin !^io2.in
M574 U2 S1 P"!^io2.in"                             ; configure active-high endstop for high end on U via pin !^io1.in
M574 Y1 S1 P"!^io3.in"                             ; configure active-high endstop for low end on Y via pin !^io3.in
M574 Z1 S1 P"!^io4.in"                             ; configure active-high endstop for low end on Z via pin !^io4.in

; Z-Probe
M558 P0 H5 F120 T6000                              ; disable Z probe but set dive height, probe speed and travel speed
M557 X15:215 Y15:195 S20                           ; define mesh grid

; Heaters
M308 S0 P"temp0" Y"thermistor" T100000 B3974       ; 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 S130                                       ; set temperature limit for heater 0 to 120C

M308 S1 P"temp1" Y"thermistor" T100000 B4725 C7.06e-8       ; configure sensor 1 as thermistor on pin temp2
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

M308 S2 P"temp2" Y"thermistor" T100000 B4725 C7.06e-8       ; configure sensor 1 as thermistor on pin temp2
M950 H2 C"out2" T2                                 ; create nozzle heater output on out1 and map it to sensor 1
M307 H2 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
M143 H2 S280                                       ; set temperature limit for heater 1 to 280C

M307 H0 A110 C180 D5 B1 						   ; Bed slow temperature rise

; Fans
M950 F0 C"out7" Q500                               ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H-1                                     ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out8" Q500                               ; create fan 1 on pin out8 and set its frequency
M106 P1 S0 H-1                                     ; set fan 1 value. Thermostatic control is turned off

; Tools
; tool 0, X-axis
M563 P0 D0 H1 X0 F0                                   ; define tool 0
G10 P0 X0 Y0 Z0                                    ; set tool 0 axis offsets
; tool 1, U-axis 
M563 P1 D1 H2 X3 F1
G10 P0 R0 S0 Y0 U0 Z0                                      ; set initial tool 0 active and standby temperatures to 0C

; Custom settings are not defined

; Miscellaneous
M575 P1 S1 B57600                                  ; enable support for PanelDue
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

T0													; select tool

fcwilt

Hi,

Why do you have stall motor detection configured as well as end stops?

Thanks.

Frederick

Veti

@Visionary said in Endstop instantly triggered when homing (y-axis):

M350 X256 U256 Y256 Z64 I1 ; configure microstepping without interpolation

this will overload your cpu. go with x16 unless there is a specific reason

Visionary

@fcwilt
It is for stealthchop. My machine used to be corexy
and I have not yet optimized/checked best values for stealthchop with the new kinematics.

Veti

@Visionary said in Endstop instantly triggered when homing (y-axis):

M915

comment them for now

Visionary

@Veti
It was set high as possible for silent movement.
I will try lower values, though 16x seems very low?
Can I use something like 64x or 128x?

Veti

@Visionary

the driver interpolation will run them interally at x256

Visionary

@Veti
I changed all microstepping to 16x and commented stealthchop related commands. This didn't change y-axis homing. It still seems to instantly "reach" endstop. After homing y-axis can be moved normally, though the position won't be correct.

Veti

@Visionary said in Endstop instantly triggered when homing (y-axis):

changed all microstepping to 16x and commented stealthchop related commands.

M915 not M569

Visionary

@Veti
That is also related to stealthchop according to some post. Stall detections doesn't work with stealthchop .

Veti

what kind of endstop are you using?

Visionary

@Veti
Regular normally open microswitches. I think ill change it just be sure because I have crashed into it few times.

fcwilt

@Visionary said in Endstop instantly triggered when homing (y-axis):

@Veti
Regular normally open microswitches. I think ill change it just be sure because I have crashed into it few times.

Can you wire them to use the NC connection - using the NO connection is discouraged.

Frederick

Visionary

@fcwilt
That worked! thanks.