having trouble with home Y

ezemaff

hi.. having trouble with Y axis.

DUET 2 WIFI

in my config.g i have this
M569 P0 S1
M569 P1 S1

When i do HOME X
X => GOES TO THE LEFT in negative value (x=0)

When i do HOME Y
Y => GOES TO THE FRONT in positive value (y=300)

.. So..
When i print something
i have it fine on the slicer, but on the print i have like a mirror Captura de pantalla_20221017_200031.png

For example, The cali dragon i have it fine on the slicer (face looking to the front and purge at the left\front)
when i finish printing it the face are lookig the back and the purge is in the left\back.

Thanks.

alankilian

@ezemaff If you go to Section 9 of THIS PAGE it tells you how to reverse a motor.

You should also check Sections 7 and 8 if your Y-axis endstop configuration needs updating after you reverse the motor.

ezemaff

@alankilian Where can i find that ?

Thanks Alan.

alankilian

@ezemaff Click on the "THIS PAGE" link words.

ezemaff

@alankilian I do the section 9.. and the movement its ok.
G1 H2 Y10 goes backward to the back
G1 H2 Y-10 goes foward to the front

But, when i push on the dashboard HOME Y - Y+10 > its come forward to the front.

Any idea ?

alankilian

@ezemaff Post your homex.g and homey.g file.

How did you generate the configuration for your machine?

ezemaff

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Sat Jul 04 2020 19:19:39 GMT-0300 (Argentina Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-348 F1800 ; move quickly to X axis endstop and stop there (first pass)
G1 X5 F6000 ; go back a few mm
G1 H1 X-348 F1800 ; move slowly to X axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Sat Jul 04 2020 19:19:39 GMT-0300 (Argentina Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 Y326 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000 ; go back a few mm
G1 H1 Y326 F360 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.1.3 on Sat Jul 04 2020 19:19:39 GMT-0300 (Argentina Standard Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-348 Y326 F1800 ; move quickly to X or Y endstop and stop there (first pass)
G1 H1 X-348 ; home X axis
G1 H1 Y326 ; home Y axis
G1 X5 Y-5 F6000 ; go back a few mm
G1 H1 X-348 F360 ; move slowly to X axis endstop once more (second pass)
G1 H1 Y326 ; then move slowly to Y axis endstop
G90 ; absolute positioning
G1 X150 Y150 F6000 ; Probe Z on the center of the bed
G30 ; home Z by probing the bed
G29 S1

; 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 add my config.g file _config.g

ezemaff

@alankilian i did it on 2020 with an old firmware..2.something.
and i upgrade to 3.

alankilian

@ezemaff OK, see where in homex.g you move towards -348 to "go home" and then in homey.g you move to +326 to "go home"?

That's why it's moving the wrong direction when homing.

Change the signs of the Y movements.

Something like this:

G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 Y-326 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000 ; go back a few mm
G1 H1 Y-326 F360 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

ezemaff

@alankilian
I changed two elements to make it right. and then I did what you say to finish that part of the printer.
change
M574 Y VALUE
and i moved the cable from X to motor Y

thanks for the help.