I recently got my hands on a used Ender 3 Pro and converted it to Klipper, so I needed a place to mount my Raspberry Pi 4. I wanted the design to fit in well with the overall look of the Ender 3 Pro, so I decided to make a control box that mounts on the right side, below the bed.

I hope this print helps others with a similar setup.

Assembly Requirements

For the Case:

• 4× M3 bolts, 10 mm or longer
• 4× M3 threaded inserts

For the Raspberry Pi:

• 4× M2 bolts, 5 mm or longer
• 4× M2 threaded inserts

For the Fan:

• 4× M3 bolts, 10 mm

Optional:

• Cable ties

There is enough space inside the case to add a step-down (buck) converter to reduce 24 V or 12 V (depending on your Ender’s supply voltage) down to 5 V for the Raspberry Pi. You will also need to connect the Raspberry Pi to the printer via a USB cable if you plan to run Klipper or OctoPrint. For that you will need a 18–20 cm USB cable. I recommend a cable with 90° USB connectors.
 

Print Settings:

Supports: No

Resolution: 0.3

Infill: 15%

Material: PLA