No unknown devices in any category and nothing under the USB category or at least these values don't change when its plugged in.

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It works perfectly, and is very slick looking while in action!

Here is my homey.g if anyone else is doing something similar. You can also find the entire configuration on my github, if it helps anyone out. Just give me some time to get it updated.

Up next, giving ends topless homing another try. But first, some multi-material prints as now my nozzles will now stay perfectly aligned.

Thanks for the help but I'll be back....

; homey.g

G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X475 U-475 F1800 ;Rough home X and U axis
G1 H1 X475 ; home X axis
G1 H1 U-475 ; home U axis
G1 X-15 U15 F6000 ; go back a few mm
G1 H1 Y500 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000 ; go back a few mm
M584 Y1 ; Y-axis right side
M574 Y2 S1 P"ystop" ; Y-axis right side endstop Active
G1 H1 Y15 F360 ; move slowly to Y axis endstop once more (second pass)
M584 Y2 ; Y-axis Left side
M574 Y2 S1 P"e1stop" ; Y-axis left side endstop Active
G1 H1 Y15 F360 ; move slowly to Y axis endstop once more (second pass)
M584 Y1:2 ; Combine Y-Axis
M574 Y2 S1 P"ystop+e1stop" ; Y Double max active high endstop switch
G1 Y-5 F6000 ; go back a few mm
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

Oh, sorry. I just had a epiphany and realized I could just put this line in the macro, duh.... I was just coming back to write this. lol
Only thing is that its going to default the value in the config, right? Say I do a e-stop or turn it off. I'll just make sure that's a safe number so I don't have any accidents incase I forget to run the macro before I start.

Is there a way to change the probe offset by sending a Gcode, or is there another way around it besides editing the config?

I have multiple bed surfaces and also IDEX copy mode which require this height to be changed. Depending on the bed surface and the tool being used I need to change Z offset value correspondingly.

I was thinking about using a macro, so I would put in say the Buildtak flex plate and run the Buildtak macro that would load the proper height map and set the correct offset.

G31 P25 X28.8 Y0 Z2.12

@Phaedrux I get it, video or it didn't happen. I should have started the extruders in the middle of the bed for effect.

https://youtu.be/LK6dmPArw2k

It works perfectly, and is very slick looking while in action!

Here is my homey.g if anyone else is doing something similar. You can also find the entire configuration on my github, if it helps anyone out. Just give me some time to get it updated.

Up next, giving ends topless homing another try. But first, some multi-material prints as now my nozzles will now stay perfectly aligned.

Thanks for the help but I'll be back....

; homey.g

G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X475 U-475 F1800 ;Rough home X and U axis
G1 H1 X475 ; home X axis
G1 H1 U-475 ; home U axis
G1 X-15 U15 F6000 ; go back a few mm
G1 H1 Y500 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000 ; go back a few mm
M584 Y1 ; Y-axis right side
M574 Y2 S1 P"ystop" ; Y-axis right side endstop Active
G1 H1 Y15 F360 ; move slowly to Y axis endstop once more (second pass)
M584 Y2 ; Y-axis Left side
M574 Y2 S1 P"e1stop" ; Y-axis left side endstop Active
G1 H1 Y15 F360 ; move slowly to Y axis endstop once more (second pass)
M584 Y1:2 ; Combine Y-Axis
M574 Y2 S1 P"ystop+e1stop" ; Y Double max active high endstop switch
G1 Y-5 F6000 ; go back a few mm
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

Currently I am homing X, U, and Y all at the same time like on the link your provided but after your last comment I realized that this is a mistake. The Y-axis must be homed before the X and U like in your previous instructions. Since the X and U carriage move in the X-axis with the position of the Y axis, the Y axis must be homed first to square it up before the X and U are homed.

@dc42 Sorry but I will have to disagree with you on your points.

I don't think it's undefined what you should do if only one endstop is triggered. If the y axis is stopped on one side of the gantry, then the corresponding X or U carriage on the opposite end can not move as result of the belt arrangement. The belt can is only pivoting at this point.

As a result if Y(1) is triggered then Y(1) motor and the U axis motor should stop. If Y(2) is triggered then Y(2) and the X axis motor should stop. I will send a video when I get a second so you can better understand, it may not be clear to you if you don't have this arrangement.

In regards to your second point I will have to put more thought into this but why are you homing all the axis's at the same time? Would you not home X and U at the same time, then home Y ?

Ok, thank for looking into it for me, that makes sense. Do you plan on incorporating the functionality of the dual markforged kinematics into this feature in the future.

In addition to this. This IDEX also uses independent z leveling on a kinematic coupling. Instead of just moving the bed up and down, wouldn't it be more ideal if the bed also tilted to match the height of both nozzles instead of just one?

I was just wondering when I'm using Mesh bed leveling with my IDEX in copy mode is it leveling per the axis that the z probe is on, or is it taking in to account both the X and U axis's?

In my case I dont think it is as I get better results with mesh level turned off in copy mode and it turned on in single mode.

@dc42 said in Dual Y-axis endstop homing:

Your configuration looks Ok to me so I don't know why it isn't working. I'll re-test that feature tomorrow.

DC, this is a IDEX printer that uses the dual Mark kinematics. Would this have something to do with the issue? Logically, I could not think of a reason why it would matter but I thought I would bring it up just in case.