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Unread 30-01-2004, 17:29
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Re: Gear Ratio help....plZ..someone???

Quote:
Originally Posted by Matt Adams
There's no need to let time tell you- many many teams have gone down this path before.

If you're using two wheel drive, you should loose almost every pushing match against and four wheel driven robot, simply because half of your weight (approximately) will be dragging instead of being pushed. I can not stress enough that you need to have all wheels in contact with the ground be powered if you plan on using a simple tank style drive and wish to be competitive.

The pneumatic wheels are very light, and drivetrain is by far the most important part of your robot. Don't cut power to two wheels because of weight unless you plan on doing something so specacular with the other 5 or 8 lbs that if offsets the immense disadvantage you'll be at from having half of the pushing/pulling force.

I plead that you'll reconsider having unpowered wheels if you haven't finallized your design already.

Matt
Who said pushing was part of our strategy? We've built both 2 and 4 wheel bots in the past, and this years can be converted to 4 WD in about a day if need be, so no worries there. Weight distribution, tire patch on the ground and gear ratios are equally important. We'll try maneuverability for a change. Thanks for the concern.
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