Troubles with Two Y-Axis with individual Limit Switches

dc42

I didn't spot anything wrong with those files. What happens when you try to home Y?

deckingman

@dc42 said in Troubles with Two Y-Axis with individual Limit Switches:

I didn't spot anything wrong with those files...................

I did - M574 X2 Y2 U2 S1 ;

Unless the OP is running a particular Beta firmware (can't remember which one). M574 doesn't work in any stable V2 firmware.

dc42

@deckingman said in Troubles with Two Y-Axis with individual Limit Switches:

@dc42 said in Troubles with Two Y-Axis with individual Limit Switches:

I didn't spot anything wrong with those files...................

I did - M574 X2 Y2 U2 S1 ;

Unless the OP is running a particular Beta firmware (can't remember which one). M574 doesn't work in any stable V2 firmware.

No, it's only endstop input remapping that isn't supported in V2 series firmware. That configuration will work provided that the U endstop switch is connected to the E0 endstop input.

deckingman

@dc42 said in Troubles with Two Y-Axis with individual Limit Switches:

@deckingman said in Troubles with Two Y-Axis with individual Limit Switches:

@dc42 said in Troubles with Two Y-Axis with individual Limit Switches:

I didn't spot anything wrong with those files...................

I did - M574 X2 Y2 U2 S1 ;

Unless the OP is running a particular Beta firmware (can't remember which one). M574 doesn't work in any stable V2 firmware.

No, it's only endstop input remapping that isn't supported in V2 series firmware. That configuration will work provided that the U endstop switch is connected to the E0 endstop input.

Sorry - my bad

BenNorton01

@dc42 Thank you for the reply. When I home the Y, only the one motor (Left Side, Y1) spins and it triggered by its own endstop, the Right motor (U7) doesn't spin. It does however rotate about 5deg instantaneously when the left endstop is triggered... Very strange.

Should the motor mapping line look like this:
M584 X0 Y1:7 U7 Z2:5:6 E3:4 P3 ;

Or this?:
M584 X0 Y1:7 U9 Z2:5:6 E3:4 P3 ;

BenNorton01

I still have not been able to solve this one! I have tried a few new things but still no luck
Any help would be appreciated!

dc42

@bennorton01 said in Troubles with Two Y-Axis with individual Limit Switches:

Should the motor mapping line look like this:
M584 X0 Y1:7 U7 Z2:5:6 E3:4 P3 ;

That one is correct, assuming you have connected the second Y motor to the E4 output. It is both the second Z motor and the U motor.

Can you confirm that you have the second Y endstop switch connected to the E0 (not E4) endstop input?

What happens when you try to home U by itself like this (obviously try this only when U is nearly homed, to avoid damaging your printer):

M584 Y1 U7 P4 ; separate Y and U axis for aligning them independently
G1 S1 U430 F2500

BenNorton01

@dc42
I did have the second Y Axis endstop connected to the E4 Endstop input on the Duex Board and not E0. I swapped them over and It seemed to do the job! Why would that be necessary? Wouldn't the endstops be married to their stepper output?
Thank you for all of the help

deckingman

@bennorton01 said in Troubles with Two Y-Axis with individual Limit Switches:

@dc42
I did have the second Y Axis endstop connected to the E4 Endstop input on the Duex Board and not E0. I swapped them over and It seemed to do the job! Why would that be necessary? Wouldn't the endstops be married to their stepper output?
Thank you for all of the help

End stops are assigned to axes in the order that axes are created. I'm using my phone right now so I can't be sure but I believe the order is something like x,y,u,v,w,a etc. So U would be E0, V would be E1, etc.
I agree, it can be confusing.

BenNorton01

@deckingman
That makes sense now. I just figured each endstop input would pair up with the corresponding motor output and I didn't look too much into it! Thanks for all of the help.