This is a printable mount for the FAST Pinball Neuron Controller. This includes vent ways for a raspberry pi cooling fan if you use that in your setup.

The heat-set inserts I set this up for are M4 inserts that I get from amazon. (https://www.amazon.com/gp/product/B08T9TXS9S/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1)