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Hello, looking for help in a way to hook up a Z touch pad, however my machine has no limit switches.

The board has no provisions for limits or other plugs, many empty holes to soldier wires to the...

I've got 2 different boards, but haven't idea what to fo with them. The mill works great like it is, just want to add the Z probe

I can fix about anything, just never dealt with these before. I...

This is the board I have, just found this .pdf

https://www.vallder.com/images/product_details_images/mach3_5-axis_board/Mach3-5-Axis-Interface%20Board.pdf

Yes, Mach 3 and drawing and post-processing with solidworks

The board in the machine has the 4 pin plugs for the X, Y, Z, A axis that would plug right into the breakout board. It would be wiring the drivers that would throw me.

Just have to make sure I get...

I see that now that I have a schematic. Thanks for the suggestions. I will hit you up if I have any snags