Ender 3 Raspberry Pi 4

thingiverse

I fiddled this so it would hold a Pi4 with the NIC moved to the other side, and with two micro HDMI and a USB C port. Added stiffeners where needed because my test print cracked. There's a slot above the audio jack to ease assembly, and the USB ports end is twice as thick. The fan is a 40mm 5V Noctua and is hard wired straight to the GPIO power pin for 5V, so that hole got bigger. Finally, there are two single-port relays encased in little "boxes" and the top is stretched so they'd have somewhere to sit. These run via GPIO Control and are used for the lights, and the second will be for mains power to the printer itself. Probably need to redo the lid in light of mains voltage inside, for more protection. The holes are for wire access, screwdriver, visibility of the status lights, and two oval holes in the side for ventilation. Lid is still a friction fit, I probably won't glue it down. And I will print a couple of feet for underneath, otherwise its just hanging off the T slot clip.