Ive got this project for chemestry, and the project is: cook an egg using ~20g of ethanol. A small crappy alchohol burner is provided. now the rules are, we can build our own burner, and can pretty much do whatever, so long as we use the 20g of fuel provided. my current idea was to take a small jar,...

at the end of every band camp there is a massive water fight. i recently got my hands on a scuba tank holder vest, and am thinking of making some ungodly powerful supersoaker. my problem is, the camp is on another island (i live in hawaii) and i was going to use my C02 tank w/ kobalt reg to power it...

iknowmy3tables wrote:as always I'm impressed with your work solar, but I'm still unclear on what the ammo is?

taking a look at the mag, im going to guess either REALLY short slugs, or ball (bearing?)s

Well, thankfully nothing happened in Hawaii, but it woulda been alot less aggravating if somehting had actually happened. Messed up alot of stuff though, a few gas stations are out of gas, a bunch of stores are out of spam :( and wrestling states got posponed for those of you non-hawaii people, spam...

jackssmirkingrevenge wrote:

Brian the brain wrote:Of course you would need a drillpress with one of those tables attached to fix the bolt

Sadly I don't have one, but I know a few people who might

Hey go talk to USGF, I hear he's Got one of the biggest drillpresses around

im sure if you wanted to buy one, Mike could hook you up. check out the ultimatespudgun link on the high left, and go to "contact us"

Just out of curiosity, with a BBMG ROF, wouldn't there be a pretty good chance of a bb getting stuck partially in the ball valve, which would stop it from closing? If that is actually a problem, how would you fix it? Also, about how many shots you think you could get off that tank at 450 PSI?

To add on to what JSR said, carbon fiber arrow shafts often work, as well as 1/4" breakline (car/truck part). You could also buy an airsoft barrel online, but the longest ones out there are only about 600mm (~2 feet). I've found the ones on this site very good, plus if you buy off this particular pa...

jackssmirkingrevenge wrote: The simple solution is quality BBs

well, that being siad, the bbs i use are about $12 for 5000. anyone know where i can get good bbs for cheaper than that?

should jamming be a problem if i have the bbmg built to handle my operating pressure? will it result in catastrophic failure or just a higherpowered shot after a short pause?

everyone know not to put used/low quality bbs through a tightbore in an AEG. everyone says it will "mess up the barrel" on the other hand, ive put many thousands of used/low quality bbs through a 6.25mm barrel with pretty much no problems. i happened to get my hands on a 6.03mm barrel that im thinki...

jackssmirkingrevenge wrote:

Sorry, I'm not convinced that a cartridge design is the most practical mechanism.

Fair enough, I'm aware this is mostly a personal obsession with flying brass hehe

I love brass too. It self lubricates.

on your diagram, is grey a spacer and green epoxy?

i get what you guys are saying about the price, but if the surface area of 3/4" PVC is ~.53 square inches, does a 3/4" qev have more flow than that? because it seems like a waste to have a valve with more flow than the barrel would allow

i know that QEVs are commercial optimized piston valves, but my question is how much flow do they have? will a 3/4" QEV provide enough flow to fully use the volume of a 3/4" barrel? or should i go for a 1" QEV on a 3/4" barrel

hey, also keep in mind if you are gluing large diameter pipe, some hardware stores only sell glue for up to 2" diameter pipe, i didn't realize that on a cannon with a 4" chamber, the whole chamber blew out and flew about 20 feet into a fence. anyway, read the side of the container, if might have som...