Determine Motor's Ability to Hold Load

[ttldomination]

Hello Everyone,

We hooked up two FP motors to AM planetary gearboxes, single stage I believe, and then we hooked them both up to a toughbox. I know that 2 FPs are illegal, but this was our attempt to simulate some banebot stuffz.

The problem that the FP motors faced was keeping the load up. We're using a 2.5" spool with the setup above. It takes about 40 pounds of force to lift our mechanism, but then when we get to the top, the FP motors don't hold the position.

So I was wondering what property of a motor helped to determine whether a motor will hold a load or not?

Also something else about our setup, we're running the motors with alligator clips from the battery, not through a motor controller. Is setting the motor to 0 on a motor controller different from simply removing power from the motor?

Thanks,
Sunny