Optical Sensor Endstop for Kossel Printer

This is an optical sensor endstop mount system I made for my Kossel printer. I used the default hardware to install it. I believe they are M4 x 8 bolts and T nuts for rails.

The blocker post mounts with my 4 Wheel Carriage I made using M3 x 6mm button head bolts. Mounting holes are spaced 26mm apart.

The carriage can be found here: https://www.thingiverse.com/thing:5220984

Here is the sensors I used: https://www.amazon.com/gp/product/B07MFT8NWJ/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1