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Unread 26-01-2010, 19:22
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Re: Plaction Roughtop Tread on carpet

We are currently using a 3/32 drop on the 4 center wheels of an 8 wheel west coast drive and turning is fine.
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Unread 26-01-2010, 19:33
Jamie Kalb Jamie Kalb is offline
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Re: Plaction Roughtop Tread on carpet

Quote:
Originally Posted by waialua359 View Post
We are currently using a 3/32 drop on the 4 center wheels of an 8 wheel west coast drive and turning is fine.
How far apart are your two center wheels?
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Unread 26-01-2010, 23:25
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Re: Plaction Roughtop Tread on carpet

Expect high currents in the CIMs and possible low battery voltage at the end of the match. Please try the robot on carpet before you make a final decision. If you don't have a practice field take the robot into the library, theater or any place with a lot of carpet and practice turning.
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Unread 26-01-2010, 23:30
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Re: Plaction Roughtop Tread on carpet

Quote:
Originally Posted by Jamie Kalb View Post
How far apart are your two center wheels?
All 4 wheels on each side are 9.60 inches apart from each other, using 8" wheels, with the 2 centers dropped.
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Unread 27-01-2010, 08:20
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Re: Plaction Roughtop Tread on carpet

I can say that the 2 omnis/2traction 4WD tank steering is actually really nice. We ran it in 08 and it handled perfectly and was super simple.
Although, we had about 75% of our weight on the traction wheels, where more likely teams this year will be fairly evenly spread out.
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Unread 27-01-2010, 10:51
Jamie Kalb Jamie Kalb is offline
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Re: Plaction Roughtop Tread on carpet

Quote:
Originally Posted by Jeffy View Post
I can say that the 2 omnis/2traction 4WD tank steering is actually really nice. We ran it in 08 and it handled perfectly and was super simple.
Were you using dual omnis wheels with offset rollers, or just single omnis?
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Unread 27-01-2010, 11:18
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Re: Plaction Roughtop Tread on carpet

Quote:
Originally Posted by Jeffy View Post
I can say that the 2 omnis/2traction 4WD tank steering is actually really nice. We ran it in 08 and it handled perfectly and was super simple.
Although, we had about 75% of our weight on the traction wheels, where more likely teams this year will be fairly evenly spread out.
Are the same 4 wheels the traction wheels in all driving situations?
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Unread 27-01-2010, 11:49
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Re: Plaction Roughtop Tread on carpet

I'm a fan of the 2 traction / 2 omni offset myself. You know,

T --- O
| |
| |
O --- T

2 traction 2 omni makes it fairly easy to have your robot spun by an opponent, which is why I personally prefer a high traction drop center (no omni) drive in most "normal" FRC applications. Powered omnis do work more than fine, though. This year isn't very normal.
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Last edited by Chris is me : 27-01-2010 at 11:54.
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