toughboxes

[bobosalad]

Speaking of transmissions, how do you find the good gear ratio? We want to use 4 cims and 4 transmissions. Where can I find the formula

[Tom Line]

There is no "one" formual for calculating the optimal drivetrain configuration.

If you'd like a one-stop tool, you can use JVN's Design Calculator that he recently posted here under the media papers section. However, it's only as good as your base assumptions, and those generally take a bit of "gut" knowledge about how systems work.

Barring that, the generally accepted way is to use the motor torque and amperage curves, weight of your robot, and estimated mechanical losses to calculate a baseline. I'm certain your physics teacher could help you in that regard.

[Jack Jones]

Originally Posted by bobosalad

Speaking of transmissions, how do you find the good gear ratio? We want to use 4 cims and 4 transmissions. Where can I find the formula

Here's a whitepaper that'll help you to figure it out: http://www.chiefdelphi.com/media/papers/1469

[billbo911]

Here is a more current link to the JVN Design Calculator.

[cbeavers6790]

so there is no limit on andymark toughboxes? i know about motors ive done this for three years thanks

[Chris is me]

Originally Posted by cbeavers6790

so there is no limit on andymark toughboxes? i know about motors ive done this for three years thanks

The only restriction would be your $3500 budget.