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Unread 11-01-2013, 12:09
nathan_hui nathan_hui is offline
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Re: Toughbox vs KOP Toughbox Mini

The old KoP chassis will not fit the frame perimter rules. COTS materials from the KoP chassis are still legal, just not the entire kit.

And Ether, thank you for clearing up my confusion. I believe I understand the relationship between motors, torque, and current a lot better now.
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Unread 11-01-2013, 13:06
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Re: Toughbox vs KOP Toughbox Mini

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Originally Posted by nathan_hui View Post

And Ether, thank you for clearing up my confusion. I believe I understand the relationship between motors, torque, and current a lot better now.

You are most welcome.

If you haven't seen it yet, here's a little motor calculator I wrote a while back that may give you further insight.


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Unread 11-01-2013, 13:22
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Re: Toughbox vs KOP Toughbox Mini

The chart James posted is a GREAT introduction to drive design, and I recommend everyone read it. That said, if you don't plan on continuous pushing, you can safely bring a single speed into the 10-13 feet per second range without too many problems. Just remember the faster you gear, the less versatile you are in terms of pushing.
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Unread 11-01-2013, 23:37
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Re: Toughbox vs KOP Toughbox Mini

Quote:
Originally Posted by Chris is me View Post
That said, if you don't plan on continuous pushing, you can safely bring a single speed into the 10-13 feet per second range without too many problems. Just remember the faster you gear, the less versatile you are in terms of pushing.
I'll second this with some anecdotal experience. Back in 2008 (Overdrive) we geared a 4 CIM single speed drivetrain for 13.5 fps. We did not pop a breaker once throughout competition but you will notice that at high speeds like this your motors run quite a bit hotter.

Nothing substitutes doing the math if you're uncertain or want to try something unconventional. In 2009 we ran our drivetrain on 2 Banebots RS550 motors because the math worked out.
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