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Motor Power & Unexpected Blasts

A project log for 3D Printed RC car (1-5 scale)

Can You 3D Print an Entire RC Car? I Tried — And It Blew Up (Literally)

eugene-tkachenkoEugene Tkachenko 06/28/2025 at 00:500 Comments

A 775 brushed motor at 45° angle powered the car, driven via an H-Bridge. 

On the first test, it seemed to work—until I heard a pop: the H‑Bridge blew up (twice). It lacked thermal protection and failed under load, so I upgraded to a more robust controller.

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