Chief Delphi - Climbing Mechanism Ideas

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - Climbing Mechanism Ideas (http://www.chiefdelphi.com/forums/showthread.php?t=110547)

Djur	06-01-2013 19:19

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by tickspe15 (Post 1209258)

Is there any rule against using electromagnets to grip the pyramid.

No rules about magnets.

Seeing as the robot is unpowered when it's taken down, electromagnets would make the robot fall off. Not to mention that electromagnets strong enough to hold (much less pull) a robot to the pyramid would suck tons of power.

DjMaddius

06-01-2013 19:21

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by lorem3k (Post 1209259)

Given how many people it seems are going to be focused on climbing this year, have any of you considered that you might have to deal with two other robots climbing the pyramid at the same time as you? Sending one robot seven and a half feet above the ground is a scary enough concept on its own, but when you put two more in the mix, it seems to become extremely risky and complicated. Can you say "three robot pile-up"?

Personally, I think the way to go for climbing strategy is to focus on having a strong disc scoring mechanism and shoot 3-pointers for the whole match, and then near the end, grab the pyramid near the bottom and just lift yourself a few inches off the ground for a cool 10 points.

There are 4 corners to the pyramid, plenty of space to fit all 3 of us on it! ;)

ablahblah

06-01-2013 19:42

Re: Climbing Mechanism Ideas

Do you have to be in contact with the pyramid at ALL times? I'm confused about the rule just saying that it has to contact all levels in order.

MetalJacket

06-01-2013 19:47

Re: Climbing Mechanism Ideas

There's nothing that states you must maintain contact, just that for a climb to count, you must touch the pyramid in each zone leading up to your highest in sequential order without touching more than two at once. [SARCASM] If you want to build a robot that flies to the top and just touches each rung on the way up, that should be totaly legal. [/SARCASM]

gabrielau23

06-01-2013 19:47

Re: Climbing Mechanism Ideas

6 robots racing for 4 sides of the pyramid will be pretty cool at the end, especially in elimination matches. Do you leave your best shooter (but best climber) on the field to continue to score frisbees? Or do you have your two best climbers go for the pyramid yet have your "worst" bot continue shooting? sigh................
I asked about 3 engineers today, and they all said what we're doing right now in 6 weeks is pretty hard...and VERY challenging.

lorem3k

06-01-2013 19:50

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by gabrielau23 (Post 1209297)

6 robots would race for 8 sides worth of pyramid, not 4.

gabrielau23

06-01-2013 19:58

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by lorem3k (Post 1209299)

6 robots would race for 8 sides worth of pyramid, not 4.

8 sides? You mean that robots will also be climbing from the inside of the pyramid? Pardonez-moi, mais je sais (Pardon me, but I think) that it would be far too risky for teams to attempt to climb the same rungs simultaneously.

MetalJacket

06-01-2013 20:00

Re: Climbing Mechanism Ideas

He was referring to the fact that each alliance has its own 4-sided pyramid ... 2*4 sides = 8 total sides

gabrielau23

06-01-2013 20:09

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by MetalJacket (Post 1209309)

He was referring to the fact that each alliance has its own 4-sided pyramid ... 2*4 sides = 8 total sides

Ahhh my b.....lol I brainfarted and locked on to just our alliance's pyramid....didn't account for the other pyramid.

MetalJacket

06-01-2013 20:13

Re: Climbing Mechanism Ideas

That's fine, I've had several "duh"-moments when it comes to forgetting simple stuff like that so far.

mrnoble

06-01-2013 20:23

Re: Climbing Mechanism Ideas

How's the brainstorming coming along? The complexity of this task is proving to be a stumper so far, it seems. I wonder if we'll see any dedicated climbers with no other abilities. Is there any precedent in FIRST for non-wheeled bots?

Djur	06-01-2013 20:28

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by mrnoble (Post 1209325)

There was one robot several years ago that had a walking/crawling mechanism for defense.

gabrielau23

06-01-2013 20:28

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by mrnoble (Post 1209325)

Haha I don't think we'll see any like that. The maximum score for the robots if you scored every single frisbee on the field was 400+. If your alliance scored 200 points, you would only have scored 15% of the total score. I know alliances are rarely that balanced when it comes to scoring, but let's say you "only" score 100 points you still don't make up 1/3 of the alliance points.

moogboy

06-01-2013 20:28

Re: Climbing Mechanism Ideas

Quote:

Originally Posted by mrnoble (Post 1209325)

One of our mentors came up with a non-wheeled design. a 50 pound, 16x16x16 cube that would do nothing except climb to the third level. Really, you wouldn't even need drivers. Someone could take that idea of a non-wheeled robot and ask really nicely for other robots to give them the alliance colored frisbees and have a really simple dumping mechanism to get another 20 points.

MetalJacket

06-01-2013 20:29

Re: Climbing Mechanism Ideas

One idea, assuming you can work with the size constraints involved, is to drive under the pyramid and using a bot that has some kind of tower tilted to the angle of the side rails, latch on to the side rail using three actuated hooks and have powered wheels on the inside of the rail to ride up. As you reached the part where the rungs mee the rail, you could just actuate on hook at a time to get over it. ... Maybe?

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