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Thread: Robotics with PIC16F877 anyone??
face BY : Dan Michaels email (remove spam text)

Steve Kosmerchock wrote:
>Tom & Dan:
>My little robot weighs about a pound. I am in the process of
>trying to trim some of the weight off. The weight is too much
>for the motors at 3VDC. They don't start to move the unit until I reach
>3.5VDC. To be honest, I'm not sure what the torgue would be, (not
>sure how I could go about figuring it). Looking at the instructions
>on building the platform you are given two choices when building
>the motor Normal Speed(203.7:1) or High Speed(58.2:1).

Yeah, that wooden dozer + tracks is probably quite heavy. Makes
me glad I decided to go with AOL CDs for the body - quite light.

BTW, did you set up the geartrain for 203 or 58? Makes a really
big difference with the little '130' motors.

- danM

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