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Unread 11-01-2013, 09:05
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Re: Smaller Robot Perimeter

Boy that just goes to show you can't predict how GDC will rule on anything.
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Unread 11-01-2013, 09:38
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Re: Smaller Robot Perimeter

Quote:
Originally Posted by Mongai View Post
We are creating a square 27 1/2" by 27 1/2" robot to maximize volume and to avoid discrepancies with judges.
If you want to maximize volume, why don't you go with a 35" diameter circular robot? A 35" diameter robot would have a circumference/perimeter of 110".
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Last edited by dodar : 11-01-2013 at 10:04.
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Unread 11-01-2013, 10:01
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Re: Smaller Robot Perimeter

Quote:
Originally Posted by Mongai View Post
We are creating a square 27 1/2" by 27 1/2" robot to maximize volume and to avoid discrepancies with judges.
It is often prudent to leave yourself a little wiggle room when it comes to sizing. You may want to downsize to 27 3/8".
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Unread 11-01-2013, 10:07
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Re: Smaller Robot Perimeter

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Originally Posted by FrankJ View Post
Boy that just goes to show you can't predict how GDC will rule on anything.
I predicted it correctly....it's been typical over the past several years that an overall robot "volume" measurement includes the bumpers.

But then, my team is not trying to push the volume boundary, so we can afford to be pessimistic.
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Unread 11-01-2013, 10:16
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Re: Smaller Robot Perimeter

We put together our frame last night, and measured it at 110.5".

I'm liking this rule change more and more... you don't have to intentionally design undersized so your bolt heads fit in the sizing box - just make it to the dimensions you want and ignore the bolt heads (per R02)!
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Unread 11-01-2013, 10:24
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Re: Smaller Robot Perimeter

....and if you accidentally add some plates or something to the sides and it gets too big, just chamfer the corners!

(spell check didn't like the word "chamfer"????)
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Unread 11-01-2013, 10:53
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Re: Smaller Robot Perimeter

Well this throws a wrench into things...
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  #23   Spotlight this post!  
Unread 11-01-2013, 23:12
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Re: Smaller Robot Perimeter

Our perimeter (without bumpers) is 110". Does this QA thing mean that we are violating the perimeter rule when we put our bumpers on?

We have not made them for our robot yet but I assume that we will be...


Or am I understanding this wrong?
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Unread 11-01-2013, 23:22
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Re: Smaller Robot Perimeter

The bumper inclusion is in regards to the 54" diameter cylinder. The 112" frame perimeter is the outer polygon of your robot without bumpers. HTH
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Unread 11-01-2013, 23:22
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Re: Smaller Robot Perimeter

Quote:
Originally Posted by Christopher149 View Post
The bumper inclusion is in regards to the 54" diameter cylinder. The 112" frame perimeter is the outer polygon of your robot without bumpers. HTH
Thanks.
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Unread 12-01-2013, 00:23
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does what needs to be done.
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Re: Smaller Robot Perimeter

Our club officers and mentors (myself included) have decided to embrace this growing trend of making things smaller, and decided to make a really lightweight robot.

Of course, that was after the hexagonal robot milled out of a solid aluminum block with decagon wheels and a quadcopter swarm for a manipulator was ruled out.
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Unread 12-01-2013, 00:57
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Re: Smaller Robot Perimeter

3735 has been having to think more innovation on how to fit inside the perimeter, but so far we don't have any major problems

Speaking of the 54 inch diameter, how is first going to measure if the robot goes outside of it during the competition?
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Unread 12-01-2013, 00:58
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Re: Smaller Robot Perimeter

Quote:
Originally Posted by clandry94 View Post
3735 has been having to think more innovation on how to fit inside the perimeter, but so far we don't have any major problems

Speaking of the 54 inch diameter, how is first going to measure if the robot goes outside of it during the competition?
During robot inspection they will but your robot into a circle and then you have to move the robot into its furthest extended position. This will be almost identical to what they did in 2011.
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Unread 12-01-2013, 10:51
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Re: Smaller Robot Perimeter

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Originally Posted by dodar View Post
During robot inspection they will but your robot into a circle and then you have to move the robot into its furthest extended position. This will be almost identical to what they did in 2011.
The problem with that is the inspector won't know what orientation the robot will be in while climbing the tower. The 54" cylinder is with repect to the floor and if the robot tilts while climbing it could go out of the cylinder.
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Unread 12-01-2013, 12:16
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Re: Smaller Robot Perimeter

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Originally Posted by Shu View Post
The problem with that is the inspector won't know what orientation the robot will be in while climbing the tower. The 54" cylinder is with repect to the floor and if the robot tilts while climbing it could go out of the cylinder.
That is true. Looking at the rules I see a place where they will need another update.

ROBOT height (as defined in relation to the ROBOT) must be restricted as follows during the MATCH:

If in contact with the carpet in its AUTO ZONE and/or its PYRAMID, ≤ 84 in.


A ROBOT’S horizontal dimensions may never exceed a 54 in. diameter vertical cylinder.

Those 2 rules directly contradict each other because the 84" rule is in relation to the robot, but the 54" rule is in relation to the field.
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