Ender 3 Raspberry Pi 2/3 mount
It should fit without problem if the printer is calibated. If not please consider to calibrate it, or print 101% scale.
30mm fan added
THERE IS NOW A 2 RAILS VERSION: https://www.thingiverse.com/thing:3075921
Basically i switched the front and the back, I find it to be stronger.
V2 FILES ARE NOT COMPATIBLE WITH V1
I made this Raspberry Pi mount for the Ender 3 because i didn't want to use screws and I wanted the hole for the RasPi Camera.
Since I'm planning to leave it always on, I decided to put a 40mm fan wich
gives me a temperature drop of 10-15 degrees (during a print it stays at 42 °C with a room temperature of 28 °C).
However I included a version of the top mount without the fan hole in case you don't want it.
This box can be easily slide into the Ender 3 frame as shown in the photo. You only have to remove the 2 screws wich are holding the printer screen.
To design it I used this model of the Raspberry Pi that is incredibly detailed and well built. https://grabcad.com/library/raspberry-pi-3-model-b-reference-design-rpi-raspberrypi-raspberry-pi-solidworks-cad-assembly-1
and this fan https://grabcad.com/library/fan-40-x-40-mm-1
Any suggestion on how to improve it is very welcome.
If you have any doubt, do not hesitate to contact me, I'll try my best to help you.
If you like what I do and want to support me, head to https://www.paypal.me/giacomo30196 every bit helps me to make more things for you.