a picture of an e-bike with a 3D printed controller case

3D Printed E-Bike Controller Case

An actual box.

Posted 05/30/2020

Intro

Recently I purchased a kit to turn my regular bike into an electric bike. It came with a hub-style motor, 1000W controller, a throttle, and a battery. To secure the controller onto the bike frame, the kit came with a bag, which worked, but it was kind of… not visually appealing and didn’t really allow for neat wire management. The photo below shows what my bike looked like with the bag mount. To solve these problems, I decided to 3D print a case that would allow for neater wire management and an overall cleaner design. I ended up designing a 4 part case that used screws and brass heat-set inserts to secure everything together. It also had anchors for zip-ties to keep cables neatly stowed away.

a picture of an e-bike without a 3D printed controller case
Bike prior to 3D printed case.

Work

This project ended up being a great test of my recently upgraded CoreXY 3D Printer. Up until this point, I had only ever printed relatively small parts. I was happy to see that all of the case parts (each taking around 8-10 hours to print) printed successfully. I think the final product came out pretty well, and I really like the overall look of the bike.

an exploded view of a 3D printed e-bike controller case
Exploded case assembly.