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-   -   pic: The Cow that Jumped over the moon! (http://www.chiefdelphi.com/forums/showthread.php?t=110882)

Toa Circuit 09-01-2013 22:56
pic: The Cow that Jumped over the moon!
 

z_beeblebrox 09-01-2013 22:58
Re: pic: The Cow that Jumped over the moon!
 
1st: Really?
2nd Why?

If legal (which I doubt) and works (same issue), why is this better than a more normal robot? However, if you really build it, I'd love to see pictures and video.

CalTran 09-01-2013 23:21
Re: pic: The Cow that Jumped over the moon!
 
Bumper rules, specifically robot height?

nikeairmancurry 09-01-2013 23:28
Re: pic: The Cow that Jumped over the moon!
 
We had a kid on the team keep pushing this type of idea. Printing the OP's picture and showing him he wasn't alone after all.

valeriemoore 09-01-2013 23:39
Re: pic: The Cow that Jumped over the moon!
 
This is legal, but only if the bumpers stay within the bumper zone (2-10 inches).

GaryVoshol 10-01-2013 06:42
Re: pic: The Cow that Jumped over the moon!
 
Quote:
Originally Posted by valeriemoore (Post 1212054)
This is legal, but only if the bumpers stay within the bumper zone (2-10 inches).
The bumper zone moves with the robot. It has to be that way, else any pyramid climb over a few inches would be illegal.

To the OP, beware the Grapple rule.

JesseK 10-01-2013 07:06
Re: pic: The Cow that Jumped over the moon!
 
There's a fundamental design flaw with this, if you continue to use the sheet.

http://dsc.discovery.com/tv-shows/my...p-lift-off.htm

Quote:
Originally Posted by Mythbusters
Tossing another bee in the myth's bonnet, physics principles wouldn't permit the buzzing army to fly away with the laptop because the airflow beneath their wings would push down on the laptop.
They demonstrated this with miniature helicopters -- the helos could lift themselves in unison when all connected to the same wooden lattice. Yet once they mounted a sheet underneath the lattice, the helos couldn't get off the ground.

Toa Circuit 10-01-2013 09:37
Re: pic: The Cow that Jumped over the moon!
 
Okay, so here's the rundown of things:
Why do this design?
1. Unable to be interfered from other robots.
2. Directly dump disks into the high and pyramid goals with ease.
3. Able to block disks from opponent robots by bypassing the height limitations.
4. Sit on the pyramid at the end of the game for maximum bonus points.
5. Put other game players in a state of awe and anger and render them incapable of playing the game well.

Is it legal?
Im fairly sure. That sheet/wall is a rolled up thing of cloth that would fall down after match start, so it would at least begin satisfying the bumper rules there. Maybe the mechanism would be removed.

To JesseK:
Hmm... okay. We might have folding propellers or cut out that plate in the top to allow airflow then.

To GaryVoshol: What is the grapple rule? (I don't know any rule by that name.)

MARS_James 10-01-2013 09:54
Re: pic: The Cow that Jumped over the moon!
 
Quote:
Originally Posted by Toa Circuit (Post 1212197)
What is the grapple rule? (I don't know any rule by that name.)
G14
The following actions are prohibited with regards to interaction with FIELD elements:

grabbing,
grasping
grappling
attaching to,
damaging,
becoming entangled


Actions A-D do not apply to ROBOT interactions with the PYRAMID.

JesseK 10-01-2013 10:16
Re: pic: The Cow that Jumped over the moon!
 
Oh! I didn't realize the sheet was vertical. In that case, there isn't a design flaw so long as the plate is cut to allow air flow. There's a strategy flaw with point # 5 though:

Quote:
Originally Posted by R08
4.1.2 Safety & Damage Prevention

R08 ROBOT parts shall not be made from hazardous materials, be unsafe, cause an unsafe condition, or interfere with the operation of other ROBOTS.

<blue box>
Examples of items that will violate R08 include (but are not limited to):
A. Shields, curtains, or any other devices or materials designed or used to obstruct or limit the vision of any drivers and/or coaches and/or interfere with their ability to safely control their ROBOT

nighterfighter 10-01-2013 10:21
Re: pic: The Cow that Jumped over the moon!
 
Quote:
Originally Posted by JesseK (Post 1212217)
Oh! I didn't realize the sheet was vertical. In that case, there isn't a design flaw so long as the plate is cut to allow air flow. There's a strategy flaw with point # 5 though:
It would be safe as long as they put some sort of shroud over the blades.

JesseK 10-01-2013 10:25
Re: pic: The Cow that Jumped over the moon!
 
Quote:
Originally Posted by nighterfighter (Post 1212220)
It would be safe as long as they put some sort of shroud over the blades.
The safety issue isn't in the spinning propellors. The safety issue is the vertical sheet (shown as cow print in their CAD picture) preventing the opposing drivers from controlling their robot -- as called out in the blue box beneath R08. I emboldened the appropriate wording above.

nighterfighter 10-01-2013 10:30
Re: pic: The Cow that Jumped over the moon!
 
Quote:
Originally Posted by JesseK (Post 1212222)
The safety issue isn't in the spinning propellors. The safety issue is the vertical sheet (shown as cow print in their CAD picture) preventing the opposing drivers from controlling their robot -- as called out in the blue box beneath R08. I emboldened the appropriate wording above.
Ah. Yes, I wasn't quite sure what that was.

That vertical sheet could be made out of a mesh or something instead. It would still serve the purpose of blocking shots, but not interfere with vision.

On another note: Do you think that the FRC battery will be able to provide enough power to keep the robot flying at acceptable altitudes? If you've ever flown one of those remote control helicopters, you'll notice that as the battery gets drained the helicopter's maximum altitude dramatically falls, and as the battery gets even lower you can no longer gain altitude.

But I think it would be awesome to see a flying FRC robot!

MARS_James 10-01-2013 10:33
Re: pic: The Cow that Jumped over the moon!
 
I am more interested in which motors you will use for the propellers

JamesCH95 10-01-2013 10:33
Re: pic: The Cow that Jumped over the moon!
 
Do the power calculations required to fly and/or hover the minimum required equipment in a robot given the available motors and battery. It will soon become obvious why there has never been a flying FRC robot before.


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