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-   -   FRC 2530 Inconceivable Pneumatic Shooter (http://www.chiefdelphi.com/forums/showthread.php?t=124999)

one4robots 21-01-2014 15:18
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by cjsager (Post 1330281)
Its really awesome to see that we are not the only team trying this kind of a shooting mechanism.





Our shooter was actually inspired by our 2010 robot's original kicker, which was a two stage beast. We did end up doing some research during our brainstorming, and we were in fact encouraged ourselves by the success of 95's 2008 design. Ours is currently 3 stages, and we are waiting on a few more cylinders to arrive in order to finalize it. I hope to see you guys continue to find success with yours as the build season progresses.

Thanks CJ! You too!

JamesCH95 21-01-2014 16:17
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by cjsager (Post 1330281)
Its really awesome to see that we are not the only team trying this kind of a shooting mechanism.

Our shooter was actually inspired by our 2010 robot's original kicker, which was a two stage beast. We did end up doing some research during our brainstorming, and we were in fact encouraged ourselves by the success of 95's 2008 design. Ours is currently 3 stages, and we are waiting on a few more cylinders to arrive in order to finalize it. I hope to see you guys continue to find success with yours as the build season progresses.

Bill_B 21-01-2014 16:28
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by blazeflipper (Post 1330187)
... Also accuracy, if you only have one small point of contact it might not be as accurate as you want. Just like playing pool, it works most of the time but the one time you miss is when you need it the most. ...
Can't wait to see the size of the chalk block for the end of this "cue" stick. :cool: Or the applicator mechanism that twirls it onto the tennis ball between shots. :D

one4robots 21-01-2014 21:41
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by Bill_B (Post 1330336)
Can't wait to see the size of the chalk block for the end of this "cue" stick. :cool: Or the applicator mechanism that twirls it onto the tennis ball between shots. :D
All in due time me boy, all in due time.::safety::

4561Terrorbytes 24-01-2014 18:11
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Hey, this is Myles from team 4561. How did you exactly get your pneumatic to work? We tried a similar pneumatic design and it worked "terrifically". We had 3 pistons connected to one solenoid. We weren't losing pressure, but the pistons shot out lower than usual.

JamesCH95 25-01-2014 06:47
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by 4561Terrorbytes (Post 1331838)
Hey, this is Myles from team 4561. How did you exactly get your pneumatic to work? We tried a similar pneumatic design and it worked "terrifically". We had 3 pistons connected to one solenoid. We weren't losing pressure, but the pistons shot out lower than usual.
The most significant choke point in almost every (properly implemented) pneumatics system is the solenoid valve. You should be using 3 solenoid valves, one per piston, to achieve the fastest deployment time possible. There are also numerous threads in the pneumatics section detailing other techniques to maximize deployment speed/power if using 3 valves doesn't do the trick for you.

Good luck!

one4robots 25-01-2014 10:06
Re: FRC 2530 Inconceivable Pneumatic Shooter
 
Quote:
Originally Posted by 4561Terrorbytes (Post 1331838)
Hey, this is Myles from team 4561. How did you exactly get your pneumatic to work? We tried a similar pneumatic design and it worked "terrifically". We had 3 pistons connected to one solenoid. We weren't losing pressure, but the pistons shot out lower than usual.
Hi Myles,

James CH95 is correct. One solenoid per cylinder. Also, shorten the tubing as much as possible. You would be amazed at the difference cutting 6 inches of tubing out can make. Also, avoid the 90 degree elbow fittings whenever possible.

Good luck!


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