warpdrive WD-17s servomotor mount

DC Servomotor(BLDC?), harmonic + planetary gear reducer, Field Oriented vector control (FOC)

servomotor is usually close loop control and higher cost than stepper motor 

齒槽轉矩 low Cogging torque

齒槽轉矩是永磁電機繞組不通電時永磁體和定子鐵心之間相互作用產生的轉矩，是由永磁體與電樞齒之間相互作用力的切向分量引起的。
 

Weight 3.7kg

Capacity 15kg

On Step

 

0.6 arcsec RMS

 

0

s

 

 

 

some background info

 

stepper vs servo:

 

SimpleFOC simplefoc cn github

yaskawa. 

Amberobotics

GYEMS

K tech  MS9025

ERob

Rmb 9600. 

Btw, RST135 is also using Servomotor