Here’s my marble racing project featuring a motorized elevator and a modular track. The build isn’t fully complete yet — some support pillars are still missing.
The motor mount is designed for a 130 micro motor, which will need a small DC PWM controller to operate. You’ll also need a few M4 screws for assembly.

All the track parts can be cut from cardboard, MDF, or 3 mm plywood (don't use more than 3mm). There are two types of clips: if you’re using cardboard, choose the one with the claw; otherwise, use the smooth one.

This is probably one of the biggest projects I’ve made so far.

If you’d like to support or join the project, feel free to leave a like, print a part, or leave a comment — any feedback is greatly appreciated!

I was inspired by other creators who made similar projects, but I wanted to design my own version.
If you want more details, don’t hesitate to contact me directly. The assembly process is fairly simple, but if the photos aren’t clear enough, just let me know!