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Unread 24-01-2016, 23:31
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Re: Chain or gear drive?

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Originally Posted by asid61 View Post
Won't the $400 upper limit prevent a team from using that chassis? Did they remove that rule this year?
Does it count if most or all of the components are individually purchasable? You could (extremely easily) purchase each gear and wheel and bearing on its own and come up with the same product. Does that mean you have to?
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Unread 24-01-2016, 23:38
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Re: Chain or gear drive?

REad the rules, you might find that if the individual components can be used in different configurations, and you buy several components that work for your configuration, for under 400 each, it's ok. But if the components can only be assembled into one configuration, then you have to keep the price of the whole thing under 400.

From the web page, it looks like it's a one shot deal, and it costs over 400, so it would be illegal. But that's just my interpretation.
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Unread 25-01-2016, 09:52
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Re: Chain or gear drive?

we started using belt drive a few years ago and we will NEVER go back to chain.
with the correct spacing you never need a tensioner. Set it and forget it.
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Unread 08-02-2016, 08:53
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Re: Chain or gear drive?

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Originally Posted by Bruceb View Post
we started using belt drive a few years ago and we will NEVER go back to chain.
with the correct spacing you never need a tensioner. Set it and forget it.
I'm curious what you're gearing your belt-drive bot to, and what kind of belts/pulleys. We just switched *to* chain after several years of belts, because in very-high-torque pushing matches our 15mm HTD belts would jump even with laser-cut center-to-center mounting plates (and then even with delrin tensioners).
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Unread 26-01-2016, 20:39
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Re: Chain or gear drive?

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Originally Posted by MrForbes View Post
REad the rules, you might find that if the individual components can be used in different configurations, and you buy several components that work for your configuration, for under 400 each, it's ok. But if the components can only be assembled into one configuration, then you have to keep the price of the whole thing under 400.

From the web page, it looks like it's a one shot deal, and it costs over 400, so it would be illegal. But that's just my interpretation.
It's legal. Each of the individual components are <$400. It literally has a list of components that you can buy individually. You could put together those components in several different ways. How many different ways can you use a CIM motor? Or a washer?
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