Chief Delphi - Launching Shooter-style

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

- General Forum (http://www.chiefdelphi.com/forums/forumdisplay.php?f=16)

- - Launching Shooter-style (http://www.chiefdelphi.com/forums/showthread.php?t=124272)

Ether

07-01-2014 23:11

Re: Launching Shooter-style

Quote:

Originally Posted by cmrnpizzo14 (Post 1323533)

Team AndyMark originally prototyped a flywheel style shooter for this year. I don't think that they had any success ...

I think that someone on youtube tried a shooter like this too but I can't remember, I will look for the video and post it if I find it.

Does anyone know what the minimum required ball exit speed is for a serviceable shooter for this game? From that it should be easy to calculate a good guess for the necessary wheel moment of inertia.

jbsmithtx

07-01-2014 23:19

Re: Launching Shooter-style

Quote:

Originally Posted by Ether (Post 1323537)

For the JVN bot, what's the distance from the robot to the apex of the trajectory, and what's the length of the sweet spot? Armed with that knowledge and a bit of high school geometry, you can get an idea who's faster, the goalie or the shooter.

I presumed that the angle for the was small... I was incredibly wrong. With that setup, he has 60° of shooting, and the goalie has a distance of 20 feet to guard (assuming that they are a perfect spot. Even being in the general are gives them 10-15 feet along the goal in which they can shoot. This just seemed so small to me, but now this area is large and effective. Thank you

steinra

07-01-2014 23:41

Re: Launching Shooter-style

Quote:

Originally Posted by Ether (Post 1323543)

Does anyone know what the minimum required ball exit speed is for a serviceable shooter for this game? From that it should be easy to calculate a good guess for the necessary wheel moment of inertia.

I am not sure if it equates to a shooter, but to throw the distance we are looking at, up to 37 ft/s is the numbers we have crunched with about a 40degree launch angle.

Should be enough for those to figure out how far we are looking to get the ball to travel. :)

Randy

Pretzel

08-01-2014 00:34

Re: Launching Shooter-style

Quote:

Originally Posted by Ether (Post 1323543)

Does anyone know what the minimum required ball exit speed is for a serviceable shooter for this game? From that it should be easy to calculate a good guess for the necessary wheel moment of inertia.

Our team calculated that it should take an initial velocity of around 10 m/s or greater to make a goal from 13 feet away (close to four meters) using a 45* launch angle. These are the rounded numbers we set as goals four our launching mechanism to keep in mind while designing them.

one_each

08-01-2014 09:42

Re: Launching Shooter-style

Don't forget to adjust for launch height.

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