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Eclipse 40mm semi-auto

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: Solar » Wed May 09, 2007 3:05 pm

Thanks for the kudos guys. Looks like I will be taking final delivery of parts on the 25th. Still on track for the June release. If anyone is interested in being on the waiting list, send me an email over at http://www.eclipselauncher.com
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Unread postAuthor: Panzerfaust » Wed May 09, 2007 8:17 pm

Thats impressive... REALLY impressive. i can only imagine the design hours that went into that. Have you shot it over a chrono yet? even though i know they should be going very fast those paintballs dont look like they have very high velocity. Might be the video tricking me , though.
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Unread postAuthor: iknowmy3tables » Wed May 09, 2007 9:03 pm

when can you reveal more of the design, I want to know how you got the barrel to seal between the shell and barrel
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Unread postAuthor: Solar » Wed May 09, 2007 10:39 pm

The barrel seal is created when air passes through a tube that is surrounded by a spring that holds light tension on the rear disk. The disk has a lip that encroaches into the airstream and the friction during launch forces the disk tighter. The front of the shell is flush on the disk, then the receiver is tapered from 42.5, down to 40mm entering the barrel. I am sure that there are some improvements that can be made, but the launcher surpasses all design specs and fires great. In regards to velocities, I was firing about 225fps in those vids, but I was using a low flowing regulator and I was overshooting it before it could get to pressure. I solved this with either dual regs or a higher flow one.

I have fired paint way beyond any reasonably safe speed. I will post some data once the production model is complete in a couple weeks. I was firing a nerf style foam rocket at about 4 or 500 fps the other day with plenty of headroom psi wise.
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Unread postAuthor: frankrede » Wed May 09, 2007 11:02 pm

ohh now I see how the bore sight works!
I was a bit lost earlier.
Purely genius!
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Unread postAuthor: Solar » Wed May 09, 2007 11:57 pm

wow, thanks frankrede. sorry if I was a bit harsh on you guys, but I didn't really like being called names over in the safety thread.
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Unread postAuthor: frankrede » Thu May 10, 2007 6:56 am

Ya it was just a big understanding
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Unread postAuthor: iknowmy3tables » Thu May 10, 2007 4:45 pm

for the rotating cam shaft, the position in the groves where the shell is alined, does that have a specific depth to ensure the shaft is locked well into position
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Unread postAuthor: Solar » Thu May 10, 2007 7:59 pm

The depth varies. But yes, it has plenty of locking power.
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Unread postAuthor: POLAND_SPUD » Sat May 31, 2008 8:03 am

nice gun I but I have to agree with others as far as contest is concerned.... comparing homemade guns to this is unfair... how can you win with someone who has all the tools and machinery you can get + several thousand $$$ to spend on it :) ?
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Unread postAuthor: FeLeX » Sat May 31, 2008 12:20 pm

Slish Solar tak ti chuvak Russkiy?
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Unread postAuthor: Solar » Mon Jun 02, 2008 2:46 am

ne penemayo paruski. Grandfather was a Cossack from the Caucus mountains.
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Unread postAuthor: THUNDERLORD » Wed Jun 04, 2008 12:20 am

Wow, I just noticed the videos.

I thought I saw this in a preview for "Incredible Hulk" movie. Just wondered? 8)
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Unread postAuthor: BigGrib » Wed Jun 11, 2008 12:23 am

wow
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Yea, that's definitely going to get you at least a tazer.

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Unread postAuthor: sssssbooom » Mon Jun 16, 2008 3:26 am

dude you are amazing great job on the gun
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