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-   Robot Showcase (http://www.chiefdelphi.com/forums/forumdisplay.php?f=58)
-   -   3310 Robot Reveal (http://www.chiefdelphi.com/forums/showthread.php?t=134971)

asid61 20-02-2015 17:20
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by cglrcng (Post 1447820)
But, being assured (anyone being able to pull that off consistantly within 1/4of a second), that you have at least an even amount of RC's, assures an even chance at max points for your alliance. EQUALS VERY IMPORTANT.

Great job there Team # 3310. A great robot.
But there are multiple teams with a 0.25 second grab (some that haven't done a release video, I'm certain) so if two end up on the same alliance, bad things will happen.
It's also totally possible to have a 0.25 second 4-can auton with large enough pistons.

AdamHeard 20-02-2015 17:42
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by asid61 (Post 1447823)
But there are multiple teams with a 0.25 second grab (some that haven't done a release video, I'm certain) so if two end up on the same alliance, bad things will happen.
It's also totally possible to have a 0.25 second 4-can auton with large enough pistons.
.25 seconds is well near where it's hard to go that fast without intelligent control. Hence the motor on 3310.

The faster you go the more energy you need to dissipate to stop.

magnets 20-02-2015 17:59
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by AdamHeard (Post 1447831)
.25 seconds is well near where it's hard to go that fast without intelligent control. Hence the motor on 3310.

The faster you go the more energy you need to dissipate to stop.
Why not have the container dissipate the energy? The sort of hook 3310 and 118 have might bounce out, but a latching hook wouldn't have this issue. Also, if you hit the handle hard enough, you'd move the container out of the way to prevent anybody from grabbing it without having to worry about timing to drive the robot back.

I just can't wait to watch some tug of war!

s_forbes 20-02-2015 17:59
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by AdamHeard (Post 1447831)
The faster you go the more energy you need to dissipate to stop.
Why do you need to stop?

JohnSchneider 20-02-2015 18:09
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by magnets (Post 1447836)
Why not have the container dissipate the energy? The sort of hook 3310 and 118 have might bounce out, but a latching hook wouldn't have this issue. Also, if you hit the handle hard enough, you'd move the container out of the way to prevent anybody from grabbing it without having to worry about timing to drive the robot back.

I just can't wait to watch some tug of war!
We lock into the top of the bin.

Selle2.0 20-02-2015 18:43
Re: 3310 Robot Reveal
 
Using tractable hooks, like a harpoon. Once we have it, it's not coming out.

Tom Bottiglieri 20-02-2015 18:57
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by AdamHeard (Post 1447831)
.25 seconds is well near where it's hard to go that fast without intelligent control. Hence the motor on 3310.

The faster you go the more energy you need to dissipate to stop.
That's still only 25 control packets :ahh:

WillRobinson 20-02-2015 19:34
Re: 3310 Robot Reveal
 
What happens if a 4RC grabber can latch into the top of the RC equally as fast but then 3310 takes off? Wouldn't 3310 likely pull one end of the 4RC grabber across the step?

Would be an interesting tug of war to say the least.

JamesTerm 20-02-2015 23:45
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by Selle2.0 (Post 1447848)
Using tractable hooks, like a harpoon. Once we have it, it's not coming out.
Quote:
Originally Posted by WillRobinson (Post 1447871)
What happens if a 4RC grabber can latch into the top of the RC equally as fast but then 3310 takes off? Wouldn't 3310 likely pull one end of the 4RC grabber across the step?

Would be an interesting tug of war to say the least.
Indeed... ever hear the story of how hunters capture monkeys where they get their hand stuck in a jar and will not let go?

You may wish consider letting go as a failsafe, and have a backup plan.

Paul Copioli 21-02-2015 00:00
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by JamesTerm (Post 1447940)
Indeed... ever hear the story of how hunters capture monkeys where they get their hand stuck in a jar and will not let go?

You may wish consider letting go as a failsafe, and have a backup plan.
James,

We can let go ... if we decide to:)

Cash4587 22-02-2015 03:35
Re: 3310 Robot Reveal
 
I could be wrong but it seems like yall are sitting in the landfill to grab the cans? I didn't think you could just flop an arm down onto a can with your robot sitting stationary in auto and still be within the height limit.

JohnSchneider 22-02-2015 04:25
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by Cash4587 (Post 1448211)
I could be wrong but it seems like yall are sitting in the landfill to grab the cans? I didn't think you could just flop an arm down onto a can with your robot sitting stationary in auto and still be within the height limit.
No, we start fully out of the landfill zone. And geometry is your friend :)

Wayne TenBrink 22-02-2015 07:33
Re: 3310 Robot Reveal
 
When do I get to see video of the stacking arm?

JamesTerm 22-02-2015 10:49
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by Paul Copioli (Post 1447944)
James,

We can let go ... if we decide to:)
So do the harpoon hooks retract to let go... or do you let go from the other end and lose the arms... probably be a good idea to share how to let go... as that would be a benefit to everyone... especially to the person who still wants to hang on.

cjl2625 22-02-2015 10:59
Re: 3310 Robot Reveal
 
Quote:
Originally Posted by JohnSchneider (Post 1448214)
No, we start fully out of the landfill zone. And geometry is your friend :)
So do you move forward into the landfill, or does your arm reach from the auto zone?


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