[Oblarg]

Originally Posted by MrForbes

We got the ball to fly. Finally.

http://www.youtube.com/watch?v=akZQIIDi12I

and it does discharge all the air from the system when we open the release valve, as usual.

I'd like to thank you for sharing your 2008 catapult geometry in an earlier thread - it's been very helpful in developing our prototype at 449. We're currently running ours off of just one solenoid, currently, and it's working reasonably well for close shots:



That was with two 1.125''-bore, 8''-stroke cylinders, for reference; it shoots a bit further when we hook up a third one. We're going to experiment with different/better pneumatic setups and different cylinders in the coming week, as well as different arm geometries.