Air Delay Mine

loganphyve · Fri May 11, 2007 8:32 am

Probably not too much better. You want something light, like aluminum foil. The idea is to have a high burst pressure with minimal risk of injury. I would think that flying bits of sharp plastic would probably cause injury.

LoganPhyve
UberComputer Studios, Ltd.
"Seamless Technology Integration"

cb4289 · Fri May 11, 2007 9:19 am

do they have any books on cannon ---air cannon building.

loganphyve · Fri May 11, 2007 10:36 am

Your best bet is to consult the builder's guides and the Cannon WIKI here at spudfiles.com. Advice from experienced pros should help you on your quest. Best of all, it is completely free. If you have a question that is not answered by a thread or the FAQ or FYI Sections, start a new topic (make sure there isn't one already) and post a question. There are loads of people that will help you. That's the purpose of a forum.

Take it from a veteran,
The best knowledge, by far, comes from experience.

LoganPhyve
UberComputer Studios, Ltd.
"Seamless Technology Integration"

cb4289 · Fri May 11, 2007 11:15 am

thank you i apprecate your healp on this matter

loganphyve · Fri May 11, 2007 1:00 pm

Thats what we're here for!

LoganPhyve
UberComputer Studios, Ltd.
"Seamless Technology Integration"

cb4289 · Fri May 11, 2007 4:04 pm

who is the guy that founded this site is it pcguy ? also do you know if any one has built a over under pneumatic mortar

elitesniper · Mon Jan 14, 2008 10:19 pm

Hey i dont mean to kick this topic, but that shrader valve is it 1/8 thread or 1/4 thread?

PVC Arsenal 17 · Mon Jan 14, 2008 10:34 pm

1/8" NPT.

Got if off...err...

Buy it from BCARMS.

elitesniper · Mon Jan 14, 2008 10:37 pm

uh i made my own

just asking , 1/4 works too right?

PVC Arsenal 17 · Mon Jan 14, 2008 10:46 pm

It's all good...

elitesniper · Mon Jan 14, 2008 10:48 pm

gots one more question, the smaller your pinhole is the more delay right? and if the outside chamber(the one thats going to fill the pin hole ) is lower volume then the inside chamber(the one thats going to get filled by the pinhole leak) will the disk still successfully burst?

PVC Arsenal 17 · Mon Jan 14, 2008 10:51 pm

That depends on the pressure you put in. Say you pump in 50 psi. By the time the firing chamber fills, you're left with less than 25 psi.

Also Smaller pinhole=better.

elitesniper · Mon Jan 14, 2008 10:55 pm

ah yes so if i put in a sch 80 firing chamber it would be a little better right cause it takes longer to fill if your firing chamber is larger. Does a 3/4 inch end cap fit behind the reducer? with enough volume to still have a good psi in the firing chamber?

ThatGuyDan · Tue Jan 15, 2008 7:30 am

I'm Lazy and didn't read all 10 previous pages... but.. did someone discuss CO2 cartridges and baby powder.. we use training aid mines that actuate that way.

grumpy · Tue Jan 15, 2008 8:12 am

ThatGuyDan wrote:I'm Lazy and didn't read all 10 previous pages... but.. did someone discuss CO2 cartridges and baby powder.. we use training aid mines that actuate that way.

are these something you build yourself or are they manufactured?
i did read all ten pages and no, co2 cartridges and baby powder were not mentioned.