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My Bazooka, Help.

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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My Bazooka, Help.

Unread postAuthor: STHORNE » Tue Feb 12, 2008 7:15 pm

Ok, here i have my assembled bazooka body. I was originally going to make it a combustion cannon but decided to go with air powa!! problem is, i changed my mind after i put it together (and spent 70 bucks on pvc) so i have some ideas on how to alter it to make it a pneumatic launcher but am not sure if it will work without changing the length too much (wont be able to reach trigger handle). tell me what you think

questions and comments appreciated :lol:
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Attachments
Meanddazooka.JPG
me and the bazooka with the golf ball barrel attached (to show length)
Meanddazooka.JPG (23.72 KiB) Viewed 1358 times
bazooka barrels.JPG
bazooka barrels.JPG (28.71 KiB) Viewed 1357 times
bazookablueprintsx.JPG
bazooka without barrel/s attached
bazookablueprintsx.JPG (33.21 KiB) Viewed 1357 times
bazooka blueprint2.JPG
after modified
bazooka blueprint2.JPG (33.08 KiB) Viewed 1357 times
bazooka blueprint.JPG
Blueprint of current bazooka without barrel attachments
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Unread postAuthor: thespeedycicada » Tue Feb 12, 2008 7:19 pm

Dont put any pressure in that thing! it has DWV all over the place its fine as a combustion but DO NOT USE IT AS A PNEUMATIC!! it will explode and if you are firing it as a bazooka you will go blind/deaf!
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Unread postAuthor: MaxuS the 2nd » Tue Feb 12, 2008 7:28 pm

Dude, it would make an awesome Combustion, just stick with that.
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Unread postAuthor: DYI » Tue Feb 12, 2008 7:37 pm

The fact that you even made this topic leads me to advise you to stick with combustions until you have at least some grasp of what you're getting into.
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Unread postAuthor: STHORNE » Tue Feb 12, 2008 7:38 pm

is there any way i could possibly make it a pneumatic? im not even thinking about taking it past 30 psi, or even 20, so it shouldn't fall apart or be too loud (and besides, i used a sh!t load of cement).

making it a combustion is out of the question....so i guess what im asking is what is the safest way to modify this thing to make it pneumatic?
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Last edited by STHORNE on Tue Feb 12, 2008 7:41 pm, edited 1 time in total.
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Unread postAuthor: elitesniper » Tue Feb 12, 2008 7:40 pm

sthorne wrote:is there any way i could possibly make it a pneumatic?

making it a combustion is out of the question....so i guess what im asking is what is the safest way to modify this thing to make it pneumatic?

yes, use pressure rated pvc parts.
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Unread postAuthor: thespeedycicada » Tue Feb 12, 2008 7:41 pm

there isnt a way its all dwv even the pipe itself not just the fittings figure out how to safely make a pneumatic (not that hard with ten minutes of research) and start again.
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Unread postAuthor: STHORNE » Tue Feb 12, 2008 7:45 pm

yes, use pressure rated pvc parts.


its all sch 40 pvc so......


there isnt a way its all dwv even the pipe itself not just the fittings figure out how to safely make a pneumatic (not that hard with ten minutes of research) and start again.


for one, i made sure i got NSF-PW sch 40 so i should be ok pressure rating wise.
and second, im not starting over lol...it would be a waist of 70 bucks
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Last edited by STHORNE on Tue Feb 12, 2008 7:51 pm, edited 1 time in total.
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Unread postAuthor: elitesniper » Tue Feb 12, 2008 7:47 pm

those are dwv tee fittings I highly doubt its sch 40. And please don't use all capitals in your title.
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Unread postAuthor: thespeedycicada » Tue Feb 12, 2008 7:52 pm

I doesnt mater if its sch 40 thats just a thickness rating not a pressure rating! Its not pressure rated not the fittings not the pipe!
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Unread postAuthor: STHORNE » Tue Feb 12, 2008 7:54 pm

those are dwv tee fittings I highly doubt its sch 40.


im not arguing any more about the fact that its sch 40...because it is!
and where i live its pretty common to find sch 40 tee's at the local fleet farm and i made sure i got the right ones.
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Unread postAuthor: elitesniper » Tue Feb 12, 2008 7:55 pm

you can also tell its not good for air pressure is the socket, those are shallow socket depths.
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Unread postAuthor: potatoflinger » Tue Feb 12, 2008 7:57 pm

Yeah, most (if not all) of the fittings are DWV, which means they aren't pressure rated. They may be sch. 40, but that doesn't mean that they are pressure rated. You are fine to use it as a combustion, but if you want to make it a pneumatic you will need to use pressure rated fittings. (fittings that say NSF-PW, NOT NSF-DWV)
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Unread postAuthor: STHORNE » Tue Feb 12, 2008 7:58 pm

ok guys, look...im sorry its not perfect and everything doesn't meet your standards, but we're not really discussing my main question

whats the safest way to modify this into a pneumatic?

i really dont wanna start over or make it a combustion cannon so plz just help me out




Yeah, most (if not all) of the fittings are DWV, which means they aren't pressure rated. They may be sch. 40, but that doesn't mean that they are pressure rated. You are fine to use it as a combustion, but if you want to make it a pneumatic you will need to use pressure rated fittings. (fittings that say NSF-PW, NOT NSF-DWV)


i did say they were nsf-pw, but i just checked and they say d...w...v.

sorry to everyone who i argued with about the fittings being pw/dwv, big mistake on my half (havent slept in like 20 hrs lol).

but anyway, i still dont understand what the big deal is if im not planning on taking past 30psi, please....explain.
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Last edited by STHORNE on Tue Feb 12, 2008 8:06 pm, edited 1 time in total.
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Unread postAuthor: thespeedycicada » Tue Feb 12, 2008 8:02 pm

LISTEN TO ME! YES IT IS SCH 40 BUT ITS NOT PRESSURE RATED!
Why cant you listen? its not that hard of a concept its sch 40 which really doesnt mean crap its not a pressure rating it has to say nsf-pw get it into your head.
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