This mount adds limit switches while not losing any length on the X axis and only 3mm on the Y axis so the laser module or the shield doesn't smash up against the frame.

I bought these readily available limit switches with LEDs
[https://www.aliexpress.com/item/1005003692800997.html](https://www.aliexpress.com/item/1005003692800997.html)

Designed to use the existing holes in the S10 frame made for limit switches. Also uses the spare screws that came with the S10 (two M4x6, one M4x8). The limit switch needs one M3x8 for each PCB 

wired it up using this guide
[https://wiki.the-iskens.com/documentation/sculpfun-s10-en/#adding-limit-switches](https://wiki.the-iskens.com/documentation/sculpfun-s10-en/#adding-limit-switches)

[https://wiki.the-iskens.com/documentation/extras/limit-switches/](https://wiki.the-iskens.com/documentation/extras/limit-switches/)

Assembly

Both mounts have an A and B part.
X axis: uses a M4 screw greater than 6mm (I used the spare 8mm) Part B clips on top of part A. Part B screw hole should be closer to the Switch PCB making the back edge of the parts flush with each other. 
Y axis: Push fit parts A and B together. Part A has wings to prevent part A from moving. Mount the Y axis to the frame using two M4x6 screws (I used the spares)