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Unread 11-03-2015, 14:23
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Re: Exposed gears/chain

OP - Pics or ban!

Seriously, show an example of what you're worried about, it will make the discussion considerably more substantive. You say "exposed gears and chain" and have one mental picture for what that is, the rest of us have our own metal pictures that might be significantly different from yours. We must have some common ground for a productive thread. A great comparison would be something that had to be protected pre-2009 to pass inspection and something that is unprotected post-2009 and passed inspection.

Quote:
Originally Posted by Cory View Post
Following Rule #1 of "Don't be an idiot" will generally protect you from open gears/chains.

If you're not following Rule #1...well a guard probably isn't going to protect you either.
See sig. for extrapolation of rule #1.
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Unread 11-03-2015, 15:18
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Re: Exposed gears/chain

Quote:
Originally Posted by JamesCH95 View Post
OP - Pics or ban!

Seriously, show an example of what you're worried about, it will make the discussion considerably more substantive. You say "exposed gears and chain" and have one mental picture for what that is, the rest of us have our own metal pictures that might be significantly different from yours. We must have some common ground for a productive thread. A great comparison would be something that had to be protected pre-2009 to pass inspection and something that is unprotected post-2009 and passed inspection.
Sorry, I'll try to make this more clear. Several pictures that teams have posted, or in reveal videos, show things that seem like they could be dangerous to me.

I want to make it very clear that the following pictures are just examples, and I am in no way saying anything bad about these teams or their robots, this is a concern of the rules in general.

2015 robots: http://imgur.com/a/hIHRC

I don't have many pictures of robots 5+ years ago, but this website has a decent listing of some of them: http://frcdesigns.com/designs-robot/ There are a few with the exposed gears/pinch points, but it seems that more of the robot is covered. This might be due to the game/robot size limits, but it just seems like this used to matter more.

These are from '08 and '09, the first two pictures are from my own design/team. There's always a human factor in these robots, and it was fully my own fault I ended up needing stitches one year. http://imgur.com/a/vOKDk
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Last edited by pacoliketaco : 11-03-2015 at 15:25.
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Unread 11-03-2015, 20:43
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Re: Exposed gears/chain

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Originally Posted by pacoliketaco View Post
yeah this robot worries me in general... keep in mind it's a reveal video and they may have to make changes before competition
the one thing I will say about this robot is that those chains don't appear to actually move much, and there seems to be no way to cover them without damaging the functionality of the arm
(full video of them here https://www.youtube.com/watch?v=kokq6fgOOP4 if you hadn't watched it yet)
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