Prusa Mini Klipper & Klipperscreen mod

I really wanted to see how my mini would go with klipper, but I didn't want to snap the mainboard and mod the prusa board.  I also wanted to add neopixels for lighting the camera view.  I wanted to get rid of the need for the external pi and secondary power source for that, and the dodgy usb connection to the mainboard.  My modded prusa mini uses the original power source and has no other external connections.

This electronics box houses a BTT PiTFT 43, a pi 3B+ or 4, an SKR pico, and a 5015 fan inside to cool the boards.  The cooling fan does work, I set mine to max 75% and only when the pi is above a certain temp and it keeps it from throttling.  I do have a voron 0.1 with an open back a metre away from my mini, that pi has a fan directly on the chip and somehow that still throttles in my garage whilst this one does not.

You'll need to source molex inline connectors and be able to crimp those one one end, and JST connectors on the other end to make cables that will connect the stock motors and sensors to the new mainboard, but this leaves all the original hardware unmodified.

I replaced my x carriage fans with 24v two pin fans as it was easier to make work with this mainboard, again keeping the originals unmodified.

The main box uses M3 hardware to keep it together as well as some printed t nuts to hold it to the 3030 of the mini.

You'll need to source the KPJX-4S-S plug, and solder wires to that, crimping ferrules on the mainboard end to be safe.  I haven't bothered with a power switch as you can use the touch screen, or any network connected device to shut the system down, it will power on when it is plugged in, and you pretty much never need to turn it off anyway.

Uploading in case anyone wants to copy this setup.  You should be able to figure out how it all works if you're a modder.