Hardware
Motors, servos, drivers, buses, gearboxes, power and structure. The point is not the number on the datasheet but the conditions behind it: that 20 kg·cm figure — at what voltage, stall or rated, sustained for how long? Re-rank candidates on the same terms and the answer often changes.
Hardware · B
A 20 kg-cm servo: measured under what conditions?
Servos often account for more than half the bill of materials of a desktop robot, and their headline number is the lea…
Feetech STS series servos · SO-101 arm · 2026-09-28
Hardware · B
Integrated joint motors: what replaced hobby servos, and what it costs you
A brushless motor, gearbox and driver squeezed into one cylinder and chained on a single bus — the direct reason a low…
Robstride joint motors · CAN and CAN FD buses · LeRobot Humanoid · 2026-09-28
Hardware · B
CAN bus: the threshold between hobby servos and brushless joints
The moment joints move from servos to integrated brushless motors, communication almost always lands on CAN. Wiring is…
CAN and CAN FD buses · Robstride joint motors · 2026-09-28