How do I bypass a bad optical end stop (Y axis)and use a mechanical

Lasers
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1

How do I bypass a bad optical end stop (Y axis)and use a mechanical with the M2 nano V9?
I have everything else figured out and working except how to tell the board to ignore the optical.
Remove the sensor from the card? snip a wire in the ribbon? move a jumper/bridge?

2

Don has a lot of info on end stops. Start here and follow the links.

3

I would try and repair the end-stop as we have no access to M2 microcode and I do not think you can bypass anything from the stock driver.

I am guessing that you could replace it with a switch without having to disable anything but to my knowledge no-one has done that on a stock machine. You could use my schematics and knowledge of electronics to retrofit with a switch.

Note: there is an end-stop tester that you can build to verify whatever you decide to do works.
I have also been known to repair these for US folks that are stuck, as a last resort :).

Let us know the direction you want to go?

4

Thanks, I actually got it figured out not long after this post. I Had all the parts in stock to make a replacement harness, it gets rid of the ribbon cable and both optical end stops.
The replacement is 2 mechanical end stops and matching socket for the stepper motor and it plugs into the factory m2 nano v9 board. Still have to work on mounts when I get a chance.