Multiple y axis endstops issue

Drak

I have a y axis with 2 motors in which im triyng to use 2 endstops (one per motor). When i home the printer in the y axis only one motor turns. Am i missing something?

Here is my config

M584 X4 Y1:2 Z9:8 E0 U2                                   ; set drive mapping
M569 P0 S0                                         ; physical drive 0 goes forwards
M569 P1 S0                                         ; physical drive 1 goes forwards
M569 P2 S1                                         ; physical drive 2 goes FORwards
M569 P3 S0                                         ; physical drive 3 goes forwards
M569 P5 S0  
M569 P6 S0                                         ; physical drive 3 goes forwards
M569 P7 S0                                         ; physical drive 3 goes forwards
M569 P8 S0                                         ; physical drive 3 goes forwards
M569 P9 S0    
M350 X16 Y16:16 Z16 E16 U16 I1                            ; configure microstepping with interpolation
M92 X816.5 Y793.4:793.4 Z626.4 E100.00 U793.4                  ; set steps per mm
M566 X500.00 Y500.00:500.00 Z60.00 E120.00 U500.00                ; set maximum instantaneous speed changes (mm/min)
M203 X600.00 Y600.00:600.0 Z180.00 E1200.00 U600.0            ; set maximum speeds (mm/min)
M201 X25.00 Y25.00:25.0 Z20.00 E250.00 U25.0                ; set accelerations (mm/s^2)
M906 X800 Y800:800 Z800 E800 U800 I30                       ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            ; Set idle timeout

; Axis Limits
M208 X0 Y0 U0 Z0 S1                                   ; set axis minima
M208 X300 Y600 Z500 S0                             ; set axis maxima

; Endstops

M574 X1 S1 P"!xstop"                                ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"!ystop+!e0stop" ; configure active-high endstops for low end on Z via pins zstop and e1stop

M574 Z1 S2                                         ; configure Z-probe endstop for low end on Z

Here is my homey.g

G90                    ; absolute positioning
M584 Y1 U2 P4      ; split two Y motors
G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y-905 F1800
G1 H1 U-905 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 U5 F6000    ; go back a few mm
G1 H1 U-905 F360
G1 H1 U-905 F360  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
M584 Y1:2 P3       ; re-join Y motors 
G90              ; absolute positioning

deckingman

@Drak A very quick glance shows me that you are using colon separated values for things like speed, acceleration, jerk etc, for the Y axis. This is incorrect as they are applied per axis, not per motor. Colon separators should only be used where you have multiple extruders because they are treated as individual axes. Remove those and see how you get on.

jay_s_uk

@Drak if your aim is to move both motors at the same time while homing then your homing file is wrong.

G1 H1 Y-905 F1800
G1 H1 U-905 F1800

these 2 lines will move one motor first and then the other.
They should in case be

G1 H1 Y-905 U-905 F1800

of course if you're running RRF3 and you aren't going to individually adjust the endstop positions, there no need to split the axis into Y and U and you can just home them as Y with 2 endstops. see here https://docs.duet3d.com/User_manual/Connecting_hardware/Z_probe_auto_levelling#axis-levelling-using-endstops

Drak

@jay_s_uk

Thank you,
I have that in my config but does it need to go in my homey.g also?

M584 X4 Y1:2 Z9:8 E0 U2                                   ; set drive mapping
M569 P0 S0                                         ; physical drive 0 goes forwards
M569 P1 S0                                         ; physical drive 1 goes forwards
M569 P2 S1                                         ; physical drive 2 goes FORwards
M569 P3 S0                                         ; physical drive 3 goes forwards
M569 P5 S0  
M569 P6 S0                                         ; physical drive 3 goes forwards
M569 P7 S0                                         ; physical drive 3 goes forwards
M569 P8 S0                                         ; physical drive 3 goes forwards
M569 P9 S0    

M350 X16 Y16:16 Z16 E16 U16 I1                            ; configure microstepping with interpolation
M92 X816.5 Y793.4:793.4 Z626.4 E100.00 U793.4                  ; set steps per mm
M566 X500.00 Y500.00:500.00 Z60.00 E120.00 U500.00                ; set maximum instantaneous speed changes (mm/min)
M203 X600.00 Y600.00:600.0 Z180.00 E1200.00 U600.0            ; set maximum speeds (mm/min)
M201 X25.00 Y25.00:25.0 Z20.00 E250.00 U25.0                ; set accelerations (mm/s^2)
M906 X800 Y800:800 Z800 E800 U800 I30                       ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                            ; Set idle timeout

; Axis Limits

M208 X0 Y0 U0 Z0 S1                                   ; set axis minima
M208 X300 Y600 Z500 S0                             ; set axis maxima

; Endstops

M574 X1 S1 P"!xstop"                                ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"!ystop+!e0stop" ; configure active-high endstops for low end on Z via pins zstop and e1stop

M574 Z1 S2                                         ; configure Z-probe endstop for low end on Z

jay_s_uk

@Drak no, in whichcase theres no need to have any U axis information in your config or to split the axis into Y and U in homing

Phaedrux

Simplified

M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X816.5 Y793.4 Z626.4 E100.00                  ; set steps per mm
M566 X500.00 Y500.00 Z60.00 E120.00                ; set maximum instantaneous speed changes (mm/min)
M203 X600.00 Y600.00 Z180.00 E1200.00            ; set maximum speeds (mm/min)
M201 X25.00 Y25.00 Z20.00 E250.00                ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30                       ; set motor currents (mA) and motor idle factor in per cent

Then in your homing file you only need G1 H1 Y-905 F1800

Drak

@Phaedrux Thank you it worked