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Micro Advanced Combustion)(almost)
Posted: Mon Feb 18, 2008 9:16 pm
by elitesniper
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
. It shoots in the 450 fps ranges with my special ammo,mabey even 500 when th fan is a full power.
Posted: Mon Feb 18, 2008 9:35 pm
by sjog
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.
Posted: Mon Feb 18, 2008 9:57 pm
by elitesniper
nah im no giant haha, just your regular average 13 year old. The fan is really small.
Posted: Mon Feb 18, 2008 10:02 pm
by bigbob12345
Nice gun
How is the power I wouldnt expect much off a combustion that size.
Posted: Mon Feb 18, 2008 10:07 pm
by elitesniper
well calculations, say 400fps+ so i guess thats decent enough.
Posted: Mon Feb 18, 2008 10:24 pm
by Hubb
Very clean. It looks comfortable, too.
I like it. Nice job.
Posted: Mon Feb 18, 2008 11:26 pm
by elitesniper
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?
Posted: Mon Feb 18, 2008 11:27 pm
by bigbob12345
elitesniper wrote:well calculations, say 400fps+ so i guess thats decent enough.
Wow that is surprisingly fast what is the said ammo
Posted: Mon Feb 18, 2008 11:31 pm
by elitesniper
8g co2 cartraige with a rubber washer bolted to the top.
Posted: Mon Feb 18, 2008 11:40 pm
by bigbob12345
So a decent weight thats pretty impressive.
And were did you get a chamber fan so small.
Posted: Mon Feb 18, 2008 11:46 pm
by elitesniper
radioshack sells them, but there pretty expensive 10$ but thats the only place that had one that small
Posted: Mon Feb 18, 2008 11:48 pm
by bigbob12345
Ive been to raidioshack looking for them and they just arnt there.
Maybe Ill just buy one online.
Posted: Tue Feb 19, 2008 3:27 pm
by singularity
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)
Posted: Tue Feb 19, 2008 6:30 pm
by Maniac
Man you come out with a new cannon every other day.
Posted: Tue Feb 19, 2008 7:10 pm
by elitesniper
well all I can say is, i love to build and design cannons
, this one is eve more expensive then my 2'' piston cannon
, but it seems to come in handy when i go somewhere since it verysmall
