Ash Powers long dreamed of creating a crankshaft balancing rig, and through a combination of mechanical, electrical, electronic, and software expertise, his dream is now a reality.

The system is built around a Teensy 4.0, connected via gain amplifiers to a pair of load cells harvested from cheap digital scales. A magnetic rotary angle position sensor tracks rotations. The balancer averages ten samples from each load cell per degree of rotation, over 150 revolutions. This data is then sent via serial to a PC running custom Visual Basic software for analysis. Learn more and see it in action in the video below!