Chief Delphi - Shooter Help for 2nd Year Team

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

- Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)

- - Shooter Help for 2nd Year Team (http://www.chiefdelphi.com/forums/showthread.php?t=115559)

Chris is me

03-04-2013 14:04

Re: Shooter Help for 2nd Year Team

Side loads were not a problem for us this year direct driving off of CIMs and mini-CIMs with a very similar shooter. As long as your compression isn't insane (10.5 inches from tip of wheel to side wall is what we used) there shouldn't be any problems.

One tip I would give you guys to get a more accurate shot that curves less. It looks like your shots hook right, away from your wheels. We found this curve was a result of the frisbee being compressed but not constrained properly. The edge of the frisbee closest to the wheels was allowed to rise up, and thus discs left the shooter in a crooked manner. If you have some kind of physical guard (e.g. a piece of low friction plastic) mounted right above the shooter wheels to prevent this "popping", you may get a more consistent shot.

team4384

03-04-2013 14:22

Re: Shooter Help for 2nd Year Team

The channel opposite to the wheels doesn't seem to have any friction, the frisbee will slip, loose energy and not fly far enough. Consider taping friction tape or at least soft sided velcro to the inside of the channel opposite to the wheels. This grip the frisbee and the fast spinning wheels will generate spin and push the frisbee out.

You can get 3M friction tape (cloth electrical tape) at home depot for about $4 or so.

Ether

03-04-2013 15:29

Re: Shooter Help for 2nd Year Team

Quote:

Originally Posted by team4384 (Post 1256782)

They already did that. Ya gotta read the whole thread:

Quote:

Originally Posted by Thorne (Post 1254530)

We also increased our compression and added some foam insulation tape for friction, which helped a lot.

runneals

03-04-2013 21:28

Re: Shooter Help for 2nd Year Team

Quote:

Originally Posted by Thorne (Post 1254533)

Here's some photos of the final shooter, it was getting dark so the lighting's not great...

last one's a little blurry, but you get the idea :)

If you need the frisbees to go higher, add more foam tape (friction) and test, followed by speeding up the wheels if needed.

Ether

03-04-2013 21:50

Re: Shooter Help for 2nd Year Team

Quote:

Originally Posted by runneals (Post 1256988)

If you need the frisbees to go higher, add more foam tape (friction) and test, followed by speeding up the wheels if needed.

The motors are already maxed out. The wheels may even be too fast as is.

They've already got tape on the fence. Where do you want them to put more tape?

slickvic2252

03-04-2013 22:06

Re: Shooter Help for 2nd Year Team

Our team had a simlar problem. We found that the surface between wheels acted as a brake. To fix this we moved our wheels as close together as possible and removed the wall between them.

We are running a com 1:1 first wheel 550 3:1 second wheel and 550 1:1 80% power third wheel

https://www.youtube.com/watch?v=qgMb...e_gdata_player

slickvic2252

03-04-2013 22:13

Re: Shooter Help for 2nd Year Team

Our team had this problem. We found that the wall between the wheels acted as a break slowing the frisbee down and it went through the shooter. We fixed it by moving the wheels as close together as possible and removing the wall.

We are running a cim 1:1 first wheel 550 3:1 second wheel and 550 1:1 80% third wheel

https://www.youtube.com/watch?v=qgMb...e_gdata_player

savagecreature

04-04-2013 01:01

Re: Shooter Help for 2nd Year Team

Quote:

Originally Posted by cmrnpizzo14 (Post 1256757)

Good luck at SVR, if there is a webcast I will watch you guys!

Try not to get too discouraged, being a 2nd year team is often world's better than a rookie but there is still a lot to learn. Know what your strengths are and what you can do to help the alliance. While you are at SVR, there will be a ton of great teams there. Try and make time to go talk to 254, 233, 118, 148, 846, or 973 (sorry if I forgot anyone, put yourself down if you want to be on the list!) they will definitely be able to help you guys develop as a program.

Good luck!

Thanks so much! I will pass this along to the team. :)

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