pic: Did Somebody Say Defense Game?

[magnets]

Originally Posted by wilsonmw04

so adding three motors doesn't increase torque? interesting.

There's a limited amount of pushing force that you can have before the wheels start slipping. So if you have two CIMs geared really slow, or 15 CIMs geared really slow, once the wheels slip, you won't see any difference. However, with more CIMs, your traction limited speed will be faster, which is useful for playing defense. If you've got a crazy high traction robot that moves really slowly, it'll be hard to catch up to somebody.

[Deke]

Originally Posted by magnets

However, with more CIMs, your traction limited speed will be faster

Can you explain this one, I don't fully understand.

[magnets]

Originally Posted by Infinity2718

Can you explain this one, I don't fully understand.

in order to get to traction limited, no matter how many CIMs you have, you need a certain amount of torque at the wheels. Let's just say for my robot, it's 16 times the torque I can get directly, with no gear reduction from a single CIM motor. So, I would have a 16:1 gear reduction with a single CIM to be traction limited.

If I had two CIMs, I would need to have 16 times the torque from one CIM, or because their torque adds together, I would need 8 times the torque from two CIMs. So, I would put these two CIMs in an 8:1 gear reduction.

The second, 8:1 gear reduction with 2 CIMs will have the same amount of torque at the wheels (16 times the torque directly from a CIM) as the 16:1 with a single CIM, but the 8:1 will go twice as fast.

What you said in your previous post was correct, you need proper gearing to take advantage of your motors.

[Deke]

Originally Posted by magnets

in order to get to traction limited, no matter how many CIMs you have, you need a certain amount of torque at the wheels. Let's just say for my robot, it's 16 times the torque I can get directly, with no gear reduction from a single CIM motor. So, I would have a 16:1 gear reduction with a single CIM to be traction limited.

If I had two CIMs, I would need to have 16 times the torque from one CIM, or because their torque adds together, I would need 8 times the torque from two CIMs. So, I would put these two CIMs in an 8:1 gear reduction.

The second, 8:1 gear reduction with 2 CIMs will have the same amount of torque at the wheels (16 times the torque directly from a CIM) as the 16:1 with a single CIM, but the 8:1 will go twice as fast.

What you said in your previous post was correct, you need proper gearing to take advantage of your motors.

Excellent, thank you! A more visual explanation helps me, I miss things when I cant visualize them.