pic: Our Canon...So Far

[excel2474]

What motors are you using for it? I'm thinking about mounting a shooter on our robot, but i'm not sure what motors to use. We already have our fisher price motors used, so if anybody could give me an idea that would be great. thanks.

[Hanna2325]

not on mechanical...sry, I'm not really sure

[thefro526]

That canon is rather epic looking.... It's nice to see that someone is trying this idea. I know a lot of teams wrote it off because of the geometry of the orbit balls. Btw, do you know about how fast the balls are shot out at? I know first put a speed cap on the shooters in 2006 and I wonder if they'll do something this year.

[katyrobo2177]

ugh hannah!! i wish i could have stayed to see this magic happen!!!

[Hanna2325]

Katy - it was beautiful...lol

[kurttruk820]

Someone representing the mechanical team better jump in! This monstrosity is just our proof of concept -- the production version will be much more compact. We're direct-driving double stacked 2008 KOP wheels to distribute load a bit more evenly across the orbit ball upon contact. After today's tests, we'll likely have to move to something as long as ~5" to guarantee consistent firing velocity.

[Hanna2325]

Originally Posted by kurttruk820

Someone representing the mechanical team better jump in! This monstrosity is just our proof of concept -- the production version will be much more compact. We're direct-driving double stacked 2008 KOP wheels to distribute load a bit more evenly across the orbit ball upon contact. After today's tests, we'll likely have to move to something as long as ~5" to guarantee consistent firing velocity.

i dont think ne one on mechanical has an account....

[Jon Stratis]

Originally Posted by excel2474

What motors are you using for it? I'm thinking about mounting a shooter on our robot, but i'm not sure what motors to use. We already have our fisher price motors used, so if anybody could give me an idea that would be great. thanks.

for the prototype, we were using the standard CIM (aka "drive") motors that come in the KoP - mostly because it was easy, i think. If you remember from the kick off, 2-motor drive versus 4-motor drive didn't really make a difference, which frees up those two motors for something...

Of course, this was just our prototype, and the entire team learned a lot from watching it perform (and had some great ideas to improve performance, accuracy, size, and weight). All of the parts for it were already sitting around our build space, so it's definitely bigger and heavier than it needs to be!

[amariealbrecht]

As to clear anything up for anyone with questions...sorry probs a little late on this one...our team prototyped all the possibilities for mechanisms for our robot that we thought would be neat to try at competitions...therefore the pictures of this cannon are just a tester and this cannon you see in the picture will not be mounted on the robot as you see in the picture..it will be modified for size and weight and all that good stuff...when we have the details on weight and all that good stuff we will make sure and post