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Unread 25-01-2017, 10:10
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Jon Stratis Jon Stratis is offline
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FRC #2177 (The Robettes)
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Re: Opinion on Legality of Sharp Components

Quote:
Originally Posted by amesmich View Post
Well its a cheese grater so just running your finger on it not necessarily, while its rotating or if you pushed hard most likely.

My question is how is this different from a sprocket and chain? If I push hard or put my finger in there while moving? I am not sure I see the difference. A lot of things on robots can hurt and cut if that's the intention.

That said I am looking for opinions so I do appreciate the view point. Cant ask honest opinions and then debate them away.

Thanks.
Inspectors have the tough job of trying to determine the risk - both the chance of something happening, and the consequences if it does. Chains and sprockets are one area that can be dangerous, and many times teams will be asked to guard them to lessen the risk of an incident. Adding a guard to a chain and sprocket can, in many cases, practically eliminate any real risk of accidentally getting a finger stuck in there. Adding a guard to this, on the other hand, would probably end up removing it's usability, as I'm guessing it would have to be exposed in order to function.

When we look for sharp edges, it isn't just a cursory glance. We look for edges that could cause damage in the areas where team members are likely to put their hands - near the main breaker, under the robot where they pick it up from, access areas to mechanisms, etc. We also look for pinch points in areas where hands are likely to be.

To me, a rotating cheese grater on a robot just sounds dangerous. We've all seen times in the pits where people jump back because they weren't expecting the robot to move, or where a robot jumps off it's blocks and starts driving away before someone can hit the spacebar to stop it. Accidents happen, and I, for one, wouldn't want an item like this to turn into an accident for one of my students. I'm sure you guys can find a better way to climb over the next couple of weeks if you put your minds to it!
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2007 - Present: Mentor, 2177 The Robettes
LRI: North Star 2012-2016; Lake Superior 2013-2014; MN State Tournament 2013-2014, 2016; Galileo 2016; Iowa 2017
2015: North Star Regional Volunteer of the Year
2016: Lake Superior WFFA
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