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Reload this Page The Annual Drives Platform Poll
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View Poll Results: Drives Platform
2 Wheels 2 1.10%
4WD 47 25.82%
4 wheels, 2 driven 12 6.59%
6WD 73 40.11%
8WD 5 2.75%
10WD+ 5 2.75%
Tank tracks 15 8.24%
Kiwi Drive 4 2.20%
Omni Directional 4 2.20%
Crab Drive 5 2.75%
Swerve Drive 1 0.55%
Wheels? Who needs wheels? 9 4.95%
Voters: 182. You may not vote on this poll

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Unread 18-01-2006, 15:52
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Re: The Annual Drives Platform Poll
Quote:
Originally Posted by Kris Verdeyen
Someone please describe the difference between Crab and Swerve. And while you're at it, tell us what omni means. I'm lost. I thought Omni, crab, and swerve meant essentially the same thing.
Crab and Swerve are the same thing, Both have "modules" which turn in relation to another. As omni's do not require the drive to move, just the wheel..

Crab/Swerve:
http://firstrobotics.uwaterloo.ca/re...etrains049.jpg
http://firstrobotics.uwaterloo.ca/re...etrains058.jpg
http://firstrobotics.uwaterloo.ca/re...etrains067.jpg

Omni:
http://firstrobotics.uwaterloo.ca/re...etrains040.jpg
http://firstrobotics.uwaterloo.ca/re...s/wheels07.jpg
http://firstrobotics.uwaterloo.ca/re...s/wheels27.jpg

Just a few examples of each
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Unread 29-01-2006, 14:05
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Re: The Annual Drives Platform Poll
We are using the Crab Drive meathod on our robot. Also I was wondering the efficiency of the Kiwi Drive system. See the video I believe it would be easy to trap or "Pin" this robot on the sides not even needing a corner. Could someone that is using it explain maybe?

-Pavan
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Unread 29-01-2006, 14:12
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Re: The Annual Drives Platform Poll
Quote:
Originally Posted by Pavan
We are using the Crab Drive meathod on our robot. Also I was wondering the efficiency of the Kiwi Drive system. See the video I believe it would be easy to trap or "Pin" this robot on the sides not even needing a corner.
-Pavan
According to 4.3.4.4 <G24>, you can only pin another robot for 10 seconds before you have to back up 3 feet (then try again). Perhaps it's not that much of a disadvantage to be weak against pinning.
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Unread 29-01-2006, 14:25
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Re: The Annual Drives Platform Poll
The idea of a holonomic drive is that, on a flat field, you don't need to worry too much about being pinned because with a good driver, the bot is so fast and maneuverable that you can't get it.
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Unread 29-01-2006, 14:56
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Re: The Annual Drives Platform Poll
I hope that all teams that are going up the ramp have looked at the dynamic of their drive choice and the CG issues. Teams that don't could be great tippers.
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Unread 29-01-2006, 15:44
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Re: The Annual Drives Platform Poll
Metal in Motion, team 343 will be on tracks again this year for the forth year in a row. We're getting quite comfortable with them. We talked about a 6 wheel base but felt there wasn't enough of an advantage to change from what we are familiar with. Look for the 6 wheel base next year!
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Unread 03-02-2006, 08:25
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Re: The Annual Drives Platform Poll
interesting. slowly 4WD is creeping up to 6WD, who will have the most be the end of build season??
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