What kind of shooter is your team using?

[huurrpaderp]

I am currently prototyping a liner belt shooter with little success and was wondering what kind of shooter you and your team have decided on or had the best results with?

[ttldomination]

I am currently prototyping a liner belt shooter with little success and was wondering what kind of shooter you and your team have decided on or had the best results with?

Search is your friend. Really.

However, to address your prototype directly, in theory, it should work. About 6"-8" of belting leading up to the shooting wheel. What kind of results are you seeing?

- Sunny G.

[thedude019]

we finished protoyping last saturday (1/12/13) we came up with the shooter where a disk enters one side rotates around a wheel and shoots out its a half circle shooter which what seems like most teams will end up picking

[huurrpaderp]

Well currently we have three prototypes in the works. My belt shooter, a curved 90deg shooter, and a tomahawk style thing... We are not entirely sure what its supposed to do but whatever. My belt shooter is showing promise but need some calibration and adjustments, hopefully this will be completed today. The 90deg curved shooter is, so far, the best design having reached distances of up to 7ft... We AIM to choose the final shooter tomorrow.

[Kusha]

Linear one wheeled shooter.

[huurrpaderp]

Linear one wheeled shooter.

We were apprehensive about this type of shooter since the disc would only be in contact with the wheel for a moment, leading to less time for acceleration therefore less consistent shots... What results did you get?

[dellagd]

We were apprehensive about this type of shooter since the disc would only be in contact with the wheel for a moment, leading to less time for acceleration therefore less consistent shots... What results did you get?

How are you measureing your distance? A straight shot, angled upward, how high off the ground?

Im curious (and you should reconsider the linear shooter) because I literally threw together a two wheeled linear shooter in 30 minutes and it shot at least 15 ft.

[huurrpaderp]

How are you measureing your distance? A straight shot, angled upward, how high off the ground?

Im curious (and you should reconsider the linear shooter) because I literally threw together a two wheeled linear shooter in 30 minutes and it shot at least 15 ft.

Hmm, well we measured our belt and curved shooters at some 25deg up and flat. Maybe I will see if anyone is up for the task of testing a linear wheel shooter, but let me guess, you used pneumatic wheels right?

[dellagd]

Hmm, well we measured our belt and curved shooters at some 25deg up and flat. Maybe I will see if anyone is up for the task of testing a linear wheel shooter, but let me guess, you used pneumatic wheels right?

Yes (Well, psudo-pneumatic) Having the wheels flex makes a big difference. From "not working at all" to "works great". My measurements were from 3 ft off the ground at 0 degrees

[huurrpaderp]

Yes. Having the wheels flex makes a big difference. From "not working at all" to "works great". My measurements were from 3 ft off the ground at 0 degrees

Yea, I have been pressuring our mentor to get those wheels but for some reason he cant. But I think we may see a fix by adding some stiff rubber tubing(or whatever works) to the outer wall instead of having the wheel.

[cmrnpizzo14]

We are planning on a 2 wheel linear shooter with pneumatic wheels. Essentially the robot in 3 days shooter, except harder and faster. Ideally the disk will come out at about 25-30 m/s.

[MrForbes]

We don't know for sure, but today we got our 3rd or 4th iteration of the prototype working, with a curved shooter going thru about 90 degrees, with a 6" wedgetop tread wheel driven by a CIM and geared up in speed about 30%. It shot around 30 feet to about 6ft height (shooter on the ground), shooter angled up maybe 15 degrees. I think we'll probably go with this, the neat thing is with the way the thing is set up with sprockets and chain, we can change the ratio to get about any speed we want from 2000 to 8000 rpm or so at the wheel.

[kingbrandon14]

We are planning on a 2 wheel linear shooter with pneumatic wheels. Essentially the robot in 3 days shooter, except harder and faster. Ideally the disk will come out at about 25-30 m/s.

We are doing basically the same thing. So far, it's working great, and shoots very far (not sure of exact measurements)

[Djur]

None.

[dellagd]

None.

Nice. Single function bots are always cool.

[Team Leader]

Our team is currently prototyping both a linear and curved shooter.
We posted a video on YouTube:
http://www.youtube.com/watch?v=bsaWp0URvN4

[huurrpaderp]

Our team is currently prototyping both a linear and curved shooter.
We posted a video on YouTube:
http://www.youtube.com/watch?v=bsaWp0URvN4

Very informative video! Hopefully our pneumatic wheels will be here by Thursday so we can get to making either a linear or a curved shooter mike yours.

[catacon]

One wheeled linear shooter with a pneumatic wheel driven by a CIM. It will easily hit the highest target at 15ft from about 2ft off the ground (around 22 degrees up). It will knock your teeth out too. The keys are proper wheel speed and frisbee compression.

[Nick.kremer]

We also prototyped a few iterations of the curved (90 degree) shooter with varying levels of success. Today we finally got a our andymark order in, so we received our pneumatic wheels. Our best prototype uses the 8inch pneumatic wheel direct drive into a cim at full speed, with a lexan bottom and top (to keep the Frisbees from popping up), and a strip of aluminum as a curved rail with tread taped to it.

With this setup we achieved shoots of 50ft and greater, with the angle around 45 degrees and the shooter around 3-4ft in the air on a table. we were very pleased with setup and will be doing further modifications to improve accuracy!

p.s. dont get discouraged if your shooter isn't achieving the range or accuracy you want even though it mirrors a set up in a youtube video, as we have learned, "if at first you dont succeed, try again!" Good luck all!