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Unread 03-03-2012, 18:33
Andrew Lawrence
 
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148's "secret weapon"

For those of you who watched Alamo and got to see 148's "secret weapon", what are your thoughts on this? How can it be made better?

I think if you had one on either side of the bridge, then you can be a lot more effective with it.
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Unread 03-03-2012, 18:37
Samk Samk is offline
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Re: 148's "secret weapon"

care to elaborate on what this secret weapon was?
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Unread 03-03-2012, 18:40
Andrew Lawrence
 
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Re: 148's "secret weapon"

Quote:
Originally Posted by Samk View Post
care to elaborate on what this secret weapon was?
A pneumatic-powered arm that came down over their bumpers and touched the ground below the bridge, not only lifting them up, but also stabilizing the bridge by eliminating the rocking back and forth to the side it was on.

I'm designing one as I post this. Thanks 148!

Last edited by Andrew Lawrence : 03-03-2012 at 18:43.
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Unread 03-03-2012, 18:42
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Re: 148's "secret weapon"

Quote:
Originally Posted by Samk View Post
care to elaborate on what this secret weapon was?
A vertical bar that extends down inside the perimeter. When balancing with three robots, 148 would hang off the edge. The "Stinger" as it's been dubbed would then extend downward to stabilize the bridge, then once the bridge levels it would be retracted. This way, three wide config. bots could balance. It removes the need to drive the robot to compensate for bridge wiggling, but only works with three even weighted robots.

It's genius and we are looking into how we can create our own.
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Unread 03-03-2012, 18:56
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Re: 148's "secret weapon"

I predict we'll see very few 3-bot balances that aren't mechanically assisted.

At SPAM, we use our flipper for this as seen at 0:40 of this video.

I can't wait to see what others have come up with to help them balance!
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Unread 03-03-2012, 20:47
DominickC DominickC is offline
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Re: 148's "secret weapon"

Since we've added an aluminum cannon collar to the tip of our cannon, as well as a dynamic aluminum barrel extension, we're able to fine-tune the balancing of the bridge with subtle cannon movements.

Our two wheel drive system allows our rear end to hang off the bridge, leaving 21'' of space for two other bots on our alliance.
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Unread 03-03-2012, 23:07
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Re: 148's "secret weapon"

We've dubbed ours the Mach 5 option or the Magic jacks. There is a key thing that can be changed to make it better IMHO but I'm not telling at this point. If you go to our website you can see them in some of the pictures, just to prove that we aren't copying we put it in the bag. You'll find the link in my siganture.
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Unread 03-03-2012, 23:12
Andrew Lawrence
 
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Re: 148's "secret weapon"

Quote:
Originally Posted by DominickC View Post
Since we've added an aluminum cannon collar to the tip of our cannon, as well as a dynamic aluminum barrel extension, we're able to fine-tune the balancing of the bridge with subtle cannon movements.

Our two wheel drive system allows our rear end to hang off the bridge, leaving 21'' of space for two other bots on our alliance.
I'm sorry, two wheels drive system? Do you mean two wheels on each side, totaling up to four wheels, or only two wheels on your robot total?
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Unread 03-03-2012, 23:57
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Re: 148's "secret weapon"

Quote:
Originally Posted by SuperNerd256 View Post
I'm sorry, two wheels drive system? Do you mean two wheels on each side, totaling up to four wheels, or only two wheels on your robot total?
I don't know about @DominickC, but we're hopeful our two-wheel-total drive system will allow us to take up minimal space in the three-bot balancing challenge!
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Unread 04-03-2012, 00:07
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Re: 148's "secret weapon"

does anyone have a video or pic of 148's secret weapon? or even a link to somewhere i can see it.
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Unread 04-03-2012, 00:09
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Re: 148's "secret weapon"

Really surprised not more teams are doing this.

Didn't anyone research 2001?
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Unread 04-03-2012, 00:23
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Re: 148's "secret weapon"

Quote:
Originally Posted by =Martin=Taylor= View Post
Really surprised not more teams are doing this.

Didn't anyone research 2001?
Showed a video of 192 to 1712 during the first week of the season. We ultimately didn't use it, but I too am surprised its not more common.
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Unread 04-03-2012, 00:59
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Re: 148's "secret weapon"

The Killer Bee's (33) had something similar to this as scene here except their's comes out of their frame and seems to be used to balance 2 easily instead of 3. I expect to see a lot more of these in the coming weeks as it does not seem to be overly difficult to make as long as you have the package space and weight. Kinda like the ramp minibots from last year spreading like wildfire.
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Unread 04-03-2012, 01:43
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Re: 148's "secret weapon"

Quote:
Originally Posted by =Martin=Taylor= View Post
Really surprised not more teams are doing this.

Didn't anyone research 2001?
We considered it, ultimately decided against it.
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Unread 04-03-2012, 02:31
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Re: 148's "secret weapon"

You could improve this design in code. It's a little dirty, but hey, creative
It is similar to electronically assisted minibot deployment last year.

The Robowranglers match where they fell off the bridge proved that you only need to be balanced at the end of the match (within the allowance). The strategy goes like this: You get all three robots on the bridge and assist the Balanchine using the pneumatic stinger. The stinger would be long enough so that it would fully balance the bridge. Just before the match ends, the robot code retracts it. Because everything with mass has inertia, it will take the bridge a certain amount of time to tip past the point that it is considered "balanced". If they fall after the match ends, then it doesn't matter.

This way, as long as the robots are close enough to balanced, they will be able to score bridge points.

Hopefully this made sense
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