Compact Rear Enclosure for Octopus 1.1 for Ender 3

“It's super small, but at what cost”

Disclaimer: This is an untested concept and done more as a proof of concept. Although in theory it should work, real world performance may be different. If you encounter any issues notify me and I will address those issues as soon as possible.

This is an attempt to fit both a Pi and an Octopus into the back space of the Ender 3 without having any protruding parts like other cases with the duo. It is designed to fit in the 126mm x 250mm empty space at the back of the Ender 3s. There are of course, drawbacks though. 

1. No easily accessible ports. The ports of the Pi and the Octopus are all inside the box, meaning any easy access is not possible without modifications with cable extenders.

2. UART not possible. This excludes an ADXL345 that uses the GPIO headers on the pi, and an UART connection from the Pi to the Octopus. The expected method to connect the octopus to the Pi is by USB and to power the Pi an external USB-C cable is also expected.

3. PWR_DET plug on the Octopus MAY be blocked if you use the two USB ports in the middle of the Pi. In theory, this shouldn't happen though. At most, your cables will come out at a sharper angle than usual. 

To cool both the Pi and the Octopus, two 5015 fans are intended to turbocharge cool air from the outside to the inside. For ease of maintenance and for the best performance, I suggest doing cable management to make the wiring as clean as you can. Supports needed for the left and right case. 

PARTS REQUIRED