Make: Volume 93

always optimally aligned to the rotor position,

giving you the most torque for the lowest amount

of input energy.

The theory behind FOC is heavy on math and

formulas, so we won’t dive into that now. If you’re

interested, check out docs.simplefoc.com/foc_

theory and switchcraft.org/learning/2016/12/16/

vector-control-for-dummies.

HOW CAN I USE THEM?

Until recently, brushless motors were out of reach

for many makers. The processing requirements

and complex driver electronics made them

expensive, and the hardware and software were

often proprietary.

As they become more accessible, we makers

would like to use them in our projects, but wher ...