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My Pneumatic Cannon

Posted: Fri Jun 01, 2007 11:06 pm
by FLCLcowdude
Here it is...

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Sorry the pictures suck. It is kinda late, and I am tired as hell...

Posted: Fri Jun 01, 2007 11:18 pm
by hi
nice. looks descently powerful. i would suggest a barrel support, but other than that it looks great.

ps- this goes in showcase, not discussion.

Posted: Fri Jun 01, 2007 11:28 pm
by Marco321
Nice gun, are ya gonna post some damage pics?
nice bikes, im thinking of getting one.

Posted: Sat Jun 02, 2007 1:05 am
by turbohacker
Nice gun, is the barrel highth ajustable?
Also is that a honda 230 in the bachround? I have two of the and the are great bikes, especially for trials type riding. How long have you been riding :D

Posted: Sat Jun 02, 2007 9:41 am
by noname
Looks pretty good, though I wouldn't take it above 60 psi. You have DWV elbows and a T, and they aren't meant for pressure applications.

Posted: Sat Jun 02, 2007 11:10 am
by FLCLcowdude
I have taken it to 90 no prob. I am going to build another gun, as this was my first. It worked surprisingly well. I am kind of a pessimist, so I assumed that it was not going to work. I thought it was a fun first gun. Oh, BTW, sorry about posting this in the wrong place, I am a n00b on these forums.

Posted: Sat Jun 02, 2007 11:35 am
by keep_it_real
Nice Job.

I just have one suggestion. The barrel could be twice that length and it would go faster. A C:B ratio of .8:1 seems to be the best.

Posted: Sat Jun 02, 2007 11:54 am
by FLCLcowdude
The good thing about having interchangeable barrels is that you can put golf ball barrels on there, tennis ball barrels, anything that suits your fancy.

Posted: Sat Jun 02, 2007 5:21 pm
by lukemc
K_I_R i thought tHAT .8:1 WAS only combuston?

Posted: Tue Jun 05, 2007 6:20 pm
by FLCLcowdude
Well, today the plastic threads holding the metal pipe in broke. I am going to completely rebuild the elbow section. The elbows were DWV, and I don't want to blow up. So this time I am going to be carefull on what I buy. Also, I am going to put a modded sprinkler valve on there, so prepare for a Version 2.