This 3D-Printed RC Car Might Redefine What’s Possible

I designed a 3D-printed RC car that goes 40 MPH — but I wasn’t satisfied.
In this video, I challenge myself to redesign the entire drivetrain so it’s fully 3D printable: belts, bearings, and all-wheel-drive differentials.

Follow along as I dive into differentials, belt tensioners, ball-bearing design, and the inevitable mechanical failures that taught me more than success ever could.

For downloadable 3D Print Files:
https://www.curvlab.com/

Chapters
00:00 – Why redesign the drivetrain
01:42 – Differential Explained
05:30 – 3D Printed Bearings
08:18 – All Wheel Drive System
09:10 – Assembling the Chassis
12:14 – Field test & failure analysis


Comment your theory: What caused the bearing meltdown?
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Shout out to the original 1950s differential explanation video    • Around The Corner - How Differential Steer...