I was looking around, and I was wondering whether the Vb-1 motors for the VeX Blue are the same as the Vex Red motors, just without the internal speed controller? I was considering buying the VB-1 motor and making my own speed controller to save money, but i found this:
VEX-RC VB-1 Motors - Technical Info
VEX Robotics Description
Unit Dimensions Length 2.7 in. x Width 1 in. x Height 1.5 in.
Stall Torque 6.5 inch-pounds
**Free spin 74 rpm at 7.5V **
Current Draw 0.14 Amps to about 1.6 Amp. at stall per Motor at 7.5V
Wiring Black - ground; Red - (+) power
Weight 0.12 lbs. per motor
and for the vex red…
**Free Speed 100 rpm @ 7.5 volts **(performance varies slightly due to variations in manufacturing)
Stall Torque 6.5 in-lbs (approximately)
Max / Min Voltage 4.4 - 15 Volts (Motor life will be reduced operating outside the VEX Controller range of 5.5 - 9.0 Volts)
PWM Input 1ms - 2ms will give full reverse to full forward, 1.5ms is neutral
Nominal Dead Band 1.47ms - 1.55ms
Weight 0.21 lbs.
Wiring Black - ground; Orange - (+) power; White - PWM motor control signal
Current Draw - (+) Power pin 5mA to about 1 Amp. at stall per Motor
I just want clarification about whether they are, or aren’t, the same motor, as the vexplorer motor appears to be slower with the same amount of torque according to the datasheet.