Monday, September 16, 2013
Brief review of the 6V 1000 RPM gearmotor from ebay
The rundown of this motor with a 4S, 16.6 V battery:
Max speed: 2400 RPM
No load current: 90 mA
Stall current: 1.7 A
Torque: unsuitable for a 3 lb robot, unless you use many motors or small wheels
Comparing with a Silver Spark under the same conditions:
Max speed: 1200 RPM
No load current: 130 mA
Stall current: >2 A
Torque: previously used on 3 lb robots to good results
The torque on the chinamotor was significantly less, but expected, given its higher speed, smaller size, and lower current.
What about a gearbox swap?
When I get a robot together I'll see how these do.