Re: Frisbee shooter surface?
 

We just had some HDPE on our floor surface. But we also weren't built to shoot more than a short distance. Our prototype had a wooden surface for the floor, and it shot ever further than our competition bot, but that's more likely due to the additional compression on the prototype.
I think the wheel surface and the surface of the opposite edge it's contacting are far more important in determining accuracy and distance.

If you were to follow any of these people's advice, though, I'd recommend 2468's. Have you seen their shooter? It's deadly accurate from absolutely everywhere on the field. Their's has to be the most consistent shooter I've seen in FRC this year. (Even more consistent than 67, I'd say).

Re: Frisbee shooter surface?
 

The base of the shooter was lexan. There was some roughtop tread on the opposite side from the shooter wheels. We used Pledge (it's a spray) that made the surface very slippery.

Re: Frisbee shooter surface?
 

We initially used powdercoated aluminium on both sides of the frisbee, and it worked fine. Later we constrained the frisbee better using two HDPE blocks / strips on the 'top' and powdercoated aluminium on the bottom. If we did it again, we would probably have a pair of HDPE strips on both the top and the bottom. The important thing is to constrain the frisbee so that it cannot flex or tilt significantly.

Re: Frisbee shooter surface?
 

Our setup is similar to 1310's, with a few minor differences. The bottom of our shooter path is entirely HDPE instead of having strips. The back of the arc is also made of layered HDPE - so it's slippery instead of grippy.

Re: Frisbee shooter surface?
 

We ended up using Glasliner FRP, better know as the regolith used in 2009. We added a car wax spray to it once or twice a tournament and found it worked quite well.

Re: Frisbee shooter surface?
 

Team 708 used 1/2 inch polycarbonate, see the attached photos. Sorry for quality, it is what we had on our website

Re: Frisbee shooter surface?
 

Wow, thank you so much for the praise we really "appreciate" it. But my best advise would be to make one shooter multiple times with many of the different materials listed (there are some great shooting teams giving their advise on this thread).

And our machine was built mostly for long distance. Just something to keep in mind when comparing materials and shooters :)

Re: Frisbee shooter surface?
 

Would you mind sharing a photo of your shooter and how this foam was implemented? (I am having a tough time visualizing it)

Re: Frisbee shooter surface?
 

This is the best picture I could find
https://www.facebook.com/photo.php?f...type=3&theater

You can see the black foam on the inside of the shooter rails at the end of the arc. That runs all the way around the circle until the bucket starts. The shooter rails are also beveled into a sort of "7" shape to keep the frisbees down.

I wish I had the cad or a better picture.
http://www.chiefdelphi.com/media/photos/38565
This pic might help with the rail visualization.

Hope this helps!

Garrison

Re: Frisbee shooter surface?
 

We used a cutting board for ours, bought at Walmart. It's developed some notches in it from where frisbees ground on the board when we shot.

Re: Frisbee shooter surface?
 

We used aluminum. It was the only water jetted thing on our bot, actually.