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BL-520 Stage One

Built a combustion 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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BL-520 Stage One

Unread postAuthor: grock » Tue Jun 02, 2009 2:31 am

my awesome uncle was attending an ultimatespudgun demo put on by the owner Mike, and bought me a Bl-520 starter kit as a end of school gift. so i opened the box, and pulled out the 2 parts of the starter kit, the standard ignitor kit (SIK-20) and the offset coax kit w/ mix fan (OCK-20). it was pretty nicely packaged, and the parts all looked pretty cool. the standard ignitor is a piezo with the wire leads attached under some heat shrink tubing, the contacts are brass, which is cool, i like brass. all the brackets went together with (custom looking) square nuts, which fit into the holes in the brackets, and eliminate alot of the pain of tightening, because the bracket holds the nut, you don't need to. all aluminum, feels really solid. the off set kit was the the offset piece with a little batman thing cut into it for the mix fan tube, the 40mm mix fan, a piece that holds 1.5" PVC to the mix fan and fan protector plate, plus a switch and some wiring. pretty easy build, just followed the instructions, and it was done. the fan was pretty cool, its made out of about 19.5" inches of 1.5" PVC, and connects to the off set piece and the fan, so it pulls air up from the front of the chamber, and it exits the fan assembly at the back of the chamber, so that it also vents it when the cap is off. with ~2 seconds of static guard, it was a shot every single time, not so much spray and pray, and this thing was pretty powerful, actually almost of the same level ad some metered propane guns I've used, because of the mix fan. it was easily putting clean holes in 3/4" ply at ~15 yards. because of the grip, its pretty comfortable to shoot rocket launcher style, instead of shouldered. decided to go for a camo paint scheme, looks pretty cool. ill get some pics of the gun up in a few hours if i can
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Attachments
ock1.JPG
the offset coax kit
ignitor.JPG
the ignitor kit
ock opened.JPG
the stuff in the coax kit. the batman thing makes the fan flow better
ignitor opened.JPG
stuff from the ignitor kit
gun half done.JPG
this is the chamber with the offset piece put together
whole gun.JPG
heres the gun, about 7 feet long
ignitor grip.JPG
the ignitor/grip
back of gun.JPG
the back of the barrel and fan assembly. I might be the first person on spudfiles to get their DOG's foot in the picture
back gun 2.JPG
looking into the chamber.
Last edited by grock on Tue Jun 02, 2009 6:46 pm, edited 2 times in total.
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Unread postAuthor: starman » Tue Jun 02, 2009 9:09 am

Any particular reason this was filed in the Cannon Showcase area?
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Unread postAuthor: jackssmirkingrevenge » Tue Jun 02, 2009 11:04 am

starman wrote:Any particular reason this was filed in the Cannon Showcase area?


Work in progress perhaps?
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Unread postAuthor: jagerbond » Wed Jun 03, 2009 4:30 am

Glad to see you got it put together. When can we expect damage videos?
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Unread postAuthor: Moonbogg » Wed Jun 03, 2009 5:23 am

Thats looking pretty cool. I like the simplicity of the design. Very clean looking and nice paint to.
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Unread postAuthor: theBOOM » Thu Jun 04, 2009 12:45 am

Very nice I like the paint and specially like the simplicity of the grip it looks pretty comfortable to shoot 8) Overall nice job :D :D
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Unread postAuthor: grock » Thu Jun 04, 2009 2:12 pm

jagerbond wrote:Glad to see you got it put together. When can we expect damage videos?


thanks for making such a great kit, i should have damage videos this weekend or next, seeing as how loving on a military base isnt very conductive to loud explosion sounds, ill have to go to my friend's house
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