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#1
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Friction-increasing substances
We're thinking of using a conveyor-system to move balls from the foor to the back and the the top of our robot. Is it legal to apply a friction-increasing substance, like rosin used by violinists on their bows, to the belts to help it grab the balls a bit more?
Thanks Team 247 |
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#2
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Re: Friction-increasing substances
Will it damage the balls or leak onto the floor/anything else? If either is true, it's most likely illegal. If neither is true, then it would most likely be legal.
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#3
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Re: Friction-increasing substances
As long as it doesn't affect the ground or the wheels, then your fine. The reason they say to not use other substances is so they can keep the playing field even.
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#4
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Re: Friction-increasing substances
Like Eric said, it also has to stay off of the balls. If it affects any of the field elements, including game pieces, it will be deemed illegal.
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#5
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Re: Friction-increasing substances
we're using a similar method, except with hooks, but we tried the method of using 2 belts to compress the ball slightly, and it provides enough friction on it's own... so a friction increasing substance is not needed
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#6
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Re: Friction-increasing substances
i think using any kind of chemicals at all that will be a major use on your robot is illegal. wasnt there some rule that said that using any chemicals at all is prohibited? just use velcro or something. it works; my team tested it out and it was pretty good.
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#7
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Re: Friction-increasing substances
Quote:
You are thinking of <R02-I>, which bans caustic chemicals. Oh, and careful with the velcro: if you damage the balls, you'll have to think of an alternative. <R34> governs lubricants (or, presumably, additives that could contaminate the field--might be a good idea to Q&A that). |
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#8
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Re: Friction-increasing substances
have you ever consetered velcro? i dont know if thats legal but the rough side could grip ball well
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#9
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Re: Friction-increasing substances
Quote:
-rc |
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#10
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Re: Friction-increasing substances
depending on the material (rubber)
there is a spray used on RC tire compounds to make em stickier...i cant remember the name but your local hobby shop may know |
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#11
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Re: Friction-increasing substances
I wouldn't use rosin. I bowl, and I have seen rosin go everywhere. It will stick to the balls and most likely get on the floor. It doesn't stick well to any non-fabric materials, and it doesn't stick well to them either. It is designed for keeping hands dry/
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#12
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Re: Friction-increasing substances
What about pine tar like the big leagers use on their bats? Or some kind of friction tape or maybe belt ease?
Bruce |
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#13
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Re: Friction-increasing substances
We found some spray on insulating rubber paint, designed for tool handles and such. Applied to ABS pipe (after sanding the pipe so it sticks better) it seems to do a great job of increase friction on the balls, and does not leave any residue like rosin would.
http://www.youtube.com/watch?v=IqXdL74tVzc |
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#14
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Re: Friction-increasing substances
Pine tar is rosin
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#15
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Re: Friction-increasing substances
Quote:
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