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-   -   Rookie Team 3357 The COMETS Kicker Prototype (http://www.chiefdelphi.com/forums/showthread.php?t=80281)

GGCO 15-01-2010 22:04

Rookie Team 3357 The COMETS Kicker Prototype
 
Check out our latest videos of our kicker prototype. We're using a pneumatic powered flap to launch the ball over the ramp. We're a rookie team, so I'm EXTREMELY impressed with what we've accomplished so far.

http://www.youtube.com/user/cometsrobotics

You can follow us on Twitter http://www.twitter.com/cometsrobotics

And check out our VERY temporary website at http://firstobjective.org/foresthills

Let us know what you think!

DonRotolo 15-01-2010 22:12

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Quote:

Originally Posted by GGCO (Post 900122)
We're a rookie team, so I'm EXTREMELY impressed with what we've accomplished so far.

I'm impressed too! Very nice.

BrianT103 15-01-2010 22:13

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Looks really good, the ball gets just the right amount of air in order to go over the bumps. I have a few questions:

How many cylinders are you using for the flapper, what diameter/throw is your team using?

Does the flapper stay within the 2 inches/2 second rule?

What type of material is your flapper, what thickness?

Chris Fultz 15-01-2010 23:00

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Very Cool.

I do have a question. I heard someone say "119, 120", and then the compressor was turned off.

Remember you can only operate the pneumatics at 60 psi, even though the storage tanks can be at 120.

Maybe you are set up that way, but i just wanted to be sure.

Nawaid Ladak 15-01-2010 23:51

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
great job guys, congrats on the kicker. Hopefully we see this on your final designed robot come march.

Good luck!

GGCO 16-01-2010 07:43

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Quote:

Originally Posted by Chris Fultz (Post 900150)
Very Cool.

I do have a question. I heard someone say "119, 120", and then the compressor was turned off.

Remember you can only operate the pneumatics at 60 psi, even though the storage tanks can be at 120.

Maybe you are set up that way, but i just wanted to be sure.

Yes we had 120 in the two tanks we were using, but we did not release all of that at once. So to answer your question, I'd have to double check, but I think that we were operating the pneumatics at 60 psi.

Quote:

Looks really good, the ball gets just the right amount of air in order to go over the bumps. I have a few questions:

How many cylinders are you using for the flapper, what diameter/throw is your team using?

Does the flapper stay within the 2 inches/2 second rule?

What type of material is your flapper, what thickness?
We are using one cylinder, and yes the flapper does stay within the 2inches/2seconds rule. Currently the flapper is made out of (roughly) 1/8" plastic material.

Hopefully there will be more progress today, and I'll have new videos on our YouTube channel

nathan.chupp 16-01-2010 07:58

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Nice job. I can't wait to see more on your guys.. ::safety::

terryo 16-01-2010 08:07

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Quote:

Originally Posted by nathan.chupp (Post 900281)
Nice job. I can't wait to see more on your guys.. ::safety::

Simple and effective. Great way to start!

I anticipate a guard will be employed up front to prevent 'possessing' more than one ball as you cruise toward the goal.

Keep up the good work:cool:

GaryVoshol 16-01-2010 08:12

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Very nice. I hope you guys make it to the State Championships so I can see the final version in competition.

rsisk 16-01-2010 08:20

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Great job!

How fast is the recycle time for another kick? How about a picture from above so we can see the setup.

Vikesrock 16-01-2010 10:20

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Quote:

Originally Posted by terryo (Post 900284)
Simple and effective. Great way to start!

I anticipate a guard will be employed up front to prevent 'possessing' more than one ball as you cruise toward the goal.

Keep up the good work:cool:

I don't see anything on the robot right now that can possess one ball, nevermind several. Remember, a possessed ball is defined as staying in the same position relative to your robot if your robot moves. A ball pushed by the front of this robot will not satisfy that criteria; when moving the robot backwards or turning a ball will simply roll away.

Shawyan 16-01-2010 10:33

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
I like it, why diameter is the cylinder you are using?

Also, just a side note (a difficulty we are coming across), whatever you are using to keep the ball at the proper position for the kicker, will almost always (unless you find a way around it), interfere with the projection of the ball when kicked.

And sorry for being a critic, but I'm worried about the bumpers and if they will interfere with the ball.

Overall, extremely good and simple device. Nice way to KISS.

EricLeifermann 16-01-2010 10:36

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Its not a 2in 2 second rule. It is a rule that states you can extend beyond the frame perimeter, up to the bumper perimeter, under the bumper zone for up to 2 seconds. So if you do the math you can actually extend up to 3.25 inches beyond the frame perimeter. You have a 3/4" plywood backing and a 2.5" diameter foam water-noodle.

GGCO 16-01-2010 14:35

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Thanks for all the great encouragement and concerns! There are more pictures up on our Facebook group. I hope you enjoy! Thanks again!

http://www.facebook.com/group.php?v=...d=186836602739

GGCO 19-01-2010 15:03

Re: Rookie Team 3357 The COMETS Kicker Prototype
 
Here's the latest video guys!
youtube.com/user/cometsrobotics

As you can see, our kicker has been upgraded and we're able to make it over the bump easily.

Also, here is a bird's eye view of the robot (this is an older picture - a more up to date one would show motors mounted).

http://hphotos-snc3.fbcdn.net/hs125.snc3/17237_1280196039692_1073787706_30874240_6345538_n. jpg


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