Creative uses for servos?

[Veselin Kolev]

Originally posted by sanddrag
And let's not forget about gearing and wheel size. Those both play an important part in current draw and heating.

Yes, except that most teams gear the motors to be running at full power while pushing other robots.

Or maybe our motors didn't heat up because we never liked to get into pushing fights with our top-heavy stacker. We're afraid.

[sanddrag]

Originally posted by Veselin Kolev
Yes, except that most teams gear the motors to be running at full power while pushing other robots.

I'm not sure I understand what you are trying to say. See, gearing is a relationship between on torque and speed. As one goes up, the other goes down, and the power stays constant. Your statement is very unclear. Motors can be geared low (a high number to one) or high (a lower number to one.) Low gearing will give you lot's of torque resulting in a large force applied by the wheels. High gearing will give you more rotations per time resulting in a higher linear speed of the vehicle.

[Not2B]

Some of that canned "air" is really a refridgerent known as R152a (difluorethane). When it is released it expands, and that is what does the cooling. Works just like your AC at home, except it's a different refridgerant.

By the way, even though it is not classified as "flamable", it burns like crazy when you light it. I've done tests... my "lab" wall has burn marks to prove it.

[Veselin Kolev]

Okay, let me rephrase my idea.
My original comment was that our team's motors didn't heat up because we used the drills + chippies. And that they help each other out to not overheat.

Most robots draw the most current while pushing other robots, and more current results in more heat. They draw even more current because their wheels stop spinning sometimes if they only use the drills. We used 4 motors, and if you run the robot into another, (or into a wall) the wheels will burn away freely at the ground, preventing the motors from stalling out and drawing crazy current. Meaning that if you used more motors, they provide enough power together so they can never stall out.

Gearing this kind of system for speeds upward of 15 ft/sec could result in stall since they aren't geared for power at such low speeds. But few teams actually did use similar gearing.

[Dan Richardson]

If you do it just right you can attach a q-tip to the end and use them to clean your ears..

wow.. he said creative