Ender 3 Raspberry Pi 4 Dual Rail Mount

Summary

I was previously using Sobaldrick's https://www.thingiverse.com/thing:3191174 but upgraded to a Pi 4. Since I couldn't find one that worked for my as well as his design, I mixed up my own. I got the measurements for the front and side holes from Tomsc's design, https://www.thingiverse.com/thing:3464513/files and the side rail profiles from Sobaldrick's design. Basically projected the models onto sketch and then edited the sketches. I added a slide-together design so it could be printed upright with minimal supports. I used 3mmx6mm button heads for the RPi4, and 3mmx10mm for the fan.

UPDATE 3-4-21:
I've added files the following files as requested:

base 2.5mm thread (holes are the same size as RPi4 so no need to drill out pcb)
base 2.5mm thread opposite rails (no side io ports)
lid 40mm fan-gpio-opposite rails (no side io ports)
fan plug 30mm -grill (.2mm clearance fit)
fan plug 40mm -grill (.2mm clearance fit)

Print Settings

Printer brand:

Creality

Printer:

Ender 3

Rafts:

No

Supports:

Yes

Resolution:

.28 to .2

Infill:

40%

Filament brand:

eSUN

Filament color:

black

Filament material:

ABS+

Notes:

printed without upper or bottom layers, triangular (2 lines, in cura), or fast honeycomb (S3d)..wish cura had honeycomb. You can print w/ top/bottom if you want, though. 4 to 6 outer layers. You may need to tweak the size of the fan/gpio plugs to get them to fit if you choose to use them.