Slave axis homing

Controllers Smoothie
1

Hi There,
I have some trouble with my smoothie board configuration.
I have built a Laser cutter, using two stepper on a single axis (Y). I bought a smoothieboard 5ax to finally drive a 3 axis machine (XYZ) last driver maybe used in the future to drive a 4th rotary axis. I understood how to slave an axis in the general topics but only one endstop was used to do homing of both Y axis, but in my case, I need to do 2 differents homings (one for each Y axis) to adjust the perpendicularity of my XY plan.
I did this on my last CNC milling machine with MACH3 without any problems.
The question is : Is it possible on smoothieboard, to slave an axis, and then doing the homing at same time Y and Y’ as slave with their own endstops ?

Thanks for your support

Imported from wikidot

2

Hey there.

Simply : Smoothie doesn’t support this. You can slave two drivers together easily, but you can’t have two separate endstops for the same axis.
There would be ways to implement this using the switch module in the config, and a few transistors or AND gates in hardware, but it’s a bit of work, and not really “pretty”.

Cheers.

3

Hi,
Thank you for your answer. I was thinking about this with JK latches and some other gates.
I will probably try another solution. (Ex: mechanicals ends on both axis Y & Y’ and only 1 endstop switch)

Cheers

Romain