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Unread 18-01-2012, 22:19
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Re: 2785 Drive Train- Border Hopping Capabilities
I'd caution you to try that again with 120lbs of weight before you build it into the final design.
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Unread 18-01-2012, 22:21
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Re: 2785 Drive Train- Border Hopping Capabilities
Good job so far!

Definitely try it out at full weight at an estimated center of gravity as your results may change.

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Unread 18-01-2012, 22:24
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Re: 2785 Drive Train- Border Hopping Capabilities
Definitely load it up like everyone else said. But more importantly make sure you test everything on carpet as well. I hate to see teams go into competition with long base four wheel drives and have to either switch one set to slick wheels or omnis because they just can't turn. It looks like you have moved the wheels closer together. This may help some but I doubt it will be enough.

Keep up the good work otherwise.
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Unread 18-01-2012, 22:28
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Re: 2785 Drive Train- Border Hopping Capabilities
Don't forget about bumpers... they have to be at least 2 inches from the floor. this makes your plans a bit difficult...
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Unread 18-01-2012, 22:35
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Re: 2785 Drive Train- Border Hopping Capabilities
Quote:
Originally Posted by KevinGoneNuts View Post
Don't forget about bumpers... they have to be at least 2 inches from the floor. this makes your plans a bit difficult...
I don't see how this has a problem with the bumpers, the bottom of the bumpers may be mounted from 2"-5" from the floor.
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Unread 18-01-2012, 23:09
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Re: 2785 Drive Train- Border Hopping Capabilities
I'll mirror the above comments: load the robot with some weight, on carpet, and then try.

We did this today and it couldn't make it over with the 8'' 2011 wheels (with extra c-channel to provide a 1 inch lift).
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Unread 19-01-2012, 10:36
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Re: 2785 Drive Train- Border Hopping Capabilities
What is the height of the bottom of your frame above the floor?
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Unread 19-01-2012, 10:50
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Re: 2785 Drive Train- Border Hopping Capabilities
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Originally Posted by kamikazejoshua View Post
What is the height of the bottom of your frame above the floor?
The Center of the frame is 7" above the ground.
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Unread 18-01-2012, 22:33
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Re: 2785 Drive Train- Border Hopping Capabilities
Why 80/20? Our team has used the kit aluminum for the last 6 years and never had a problem with it. It's loaded with holes for mounting, and lighter than the extruded 80/20. The only time it bent was in 2005 when we didn't use bumpers (ahhh the good ole days).

Omni's are a good way to go for front wheels and easy turning in 4wd. Otherwise, the kit frame is really easy to adapt a 6 wheel drive. Just make sure your center wheel is 1/8" drop.
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