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Micro Advanced Combustion)(almost)

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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Micro Advanced Combustion)(almost)

Unread postAuthor: elitesniper » Mon Feb 18, 2008 9:16 pm

The MAC, my first combustion, uses peizo ignition,chamber fan,9.5x2 inch chamber, will get 3/4sch40 40'' barrel giving it a 1.5:1 ratio, everything epoxied on, not messy hose clamps or zip ties, im getting a on board propane meter on very soon, im back some... most of my money, i spent it on a 10 gallon 2.5hp air compressor :D. It shoots in the 450 fps ranges with my special ammo,mabey even 500 when th fan is a full power.
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Attachments
defaultcombust.JPG
combustionw.JPG
faninner.JPG
plaincombu.JPG
projectboxventi.JPG
propanecom.JPG
funhold.JPG
holdcombusthanf.JPG
sideadvanced done.JPG
advancedchamberdone.JPG
handholdadvandce.JPG
green1.JPG
Last edited by elitesniper on Tue Mar 25, 2008 10:19 am, edited 3 times in total.
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Unread postAuthor: sjog » Mon Feb 18, 2008 9:35 pm

That is really nice. At first glance I thought it was a piston valve.
Bushing on the barrel end looks cool being solid. On the bigger bushings
with the ribs and depressions they look a a little awkward,hard to paint w/out runs.
That fan looks tiny compared to your thumb , I don't know maybe your a giant??
No hose clamps, good for you. Just takes a few more ideas to keep it clean.
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Unread postAuthor: elitesniper » Mon Feb 18, 2008 9:57 pm

nah im no giant haha, just your regular average 13 year old. The fan is really small.
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Unread postAuthor: bigbob12345 » Mon Feb 18, 2008 10:02 pm

Nice gun
How is the power I wouldnt expect much off a combustion that size.
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Unread postAuthor: elitesniper » Mon Feb 18, 2008 10:07 pm

well calculations, say 400fps+ so i guess thats decent enough.
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Unread postAuthor: Hubb » Mon Feb 18, 2008 10:24 pm

Very clean. It looks comfortable, too.

I like it. Nice job.
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Unread postAuthor: elitesniper » Mon Feb 18, 2008 11:26 pm

thanks for the compliments guys, do you guys think the epoxy is strong enough to hold the handle and project box in place even after many recoil and stress?
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Unread postAuthor: bigbob12345 » Mon Feb 18, 2008 11:27 pm

elitesniper wrote:well calculations, say 400fps+ so i guess thats decent enough.


Wow that is surprisingly fast what is the said ammo
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Unread postAuthor: elitesniper » Mon Feb 18, 2008 11:31 pm

8g co2 cartraige with a rubber washer bolted to the top. :lol:
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Unread postAuthor: bigbob12345 » Mon Feb 18, 2008 11:40 pm

So a decent weight thats pretty impressive.
And were did you get a chamber fan so small.
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Unread postAuthor: elitesniper » Mon Feb 18, 2008 11:46 pm

radioshack sells them, but there pretty expensive 10$ but thats the only place that had one that small :cry:
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Unread postAuthor: bigbob12345 » Mon Feb 18, 2008 11:48 pm

Ive been to raidioshack looking for them and they just arnt there.
Maybe Ill just buy one online.
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Unread postAuthor: singularity » Tue Feb 19, 2008 3:27 pm

you can get a 40mm fan (the size elite sniper used) for about $2 on newegg.com, of course they will charge you $4 for shipping but its still cheaper than radioshack. if you do buy it from new egg buy like 10 or something cause the shipping pretty much stays the same (ex. the shipping on 10 fans will be like $6)
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be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Unread postAuthor: Maniac » Tue Feb 19, 2008 6:30 pm

Man you come out with a new cannon every other day.
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Unread postAuthor: elitesniper » Tue Feb 19, 2008 7:10 pm

well all I can say is, i love to build and design cannons :D , this one is eve more expensive then my 2'' piston cannon :shock: , but it seems to come in handy when i go somewhere since it verysmall :)
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