Not suggesting you do it mate, just a brain fart. And at the least you'll need a MIG for decent airtight welds Don't have to have a mig. Just have to know what your doing so you don't get pinholes. If its not more then 1/8 thick. I wouldn't attempt to use stick. Nothing like blowing holes through i...

Zeus wrote:Here's an idea, use the SMAW sticks, but flood the area with Ar while you weld.

It be cheaper to just find someone to weld it for u. And it would be much stronger if you don't have the proper skills

Being in welding school I would suggest mig with a spool gun and 100% argon or tig weld with some 4043(I think) rods. Aluminum stick rods cost a ton and aren't easy to use, especially if ur not good with stick welding


What's the thickness of the metal

I feel its about time to continue on this project of mine, got that habit of starting something and getting side traced for a few months. Should have the sprocket in the next few days. Then I gotta think of a paint job

jackssmirkingrevenge wrote:

battlelava wrote:The baffles are to hold the tennis ball and prevent if from dropping all the way to the bottom

One simple screw will do that without filling the chamber with rubbish

Yea I wish I could find my copy of the book so I could post what its suppose to look like

jackssmirkingrevenge wrote:

Xenophile wrote:with two pringles cans lining the inside to act as baffles

Baffles? In a combustion chamber? Doesn't make sense to me...

If you want turbulence to encourage complete combustion, use a fan.

The baffles are to hold the tennis ball and prevent if from dropping all the way to the bottom

Technician1002 wrote:

jimmy101 wrote:Do you have a stem removal tool for the schrader?

Yes, several. Visit an auto parts store. They come in several styles including valve caps with a core tool built in. The valve caps won't reach the valve in propane tanks.

I got tweezers to work fine

Well its now completed only have a bipod legs to add. Only problem is I can't fire it any time soon. We just had a little mishap (involving a illegal pipe b-b) in my town and its on like lockdown

Of course Brian the Brian. It looks amazing. I wish I had my mig or tight setup so I could do welding on mine. Flat black will look good with it.

biged wrote:What goes up, will come down.

Whatever you design, it must be light or you can kill someone.

Be safe, keep it simple. Stick to nerfs or my favorite, tennis balls.

How do u fill them with water lol

So I've finally got my 2 inch mortar firing, now its just time to figure out the most cheap, cost effective shell. I've done some searching on the forums, came up empty. I was originally going to launch a cup of bb's but now that i think of it, it seems to not have enough effect as say a nerf footba...

Bowdoc wrote: You could have a plastic cup on top so when it nosed over it would drop airsoft bbs like and air bust shell

I was thinking more of a powder bag on the tip that would pop on impact. Nice "explosion" effect

[quote="wyz2285"So imagine, a 100g projectile falling down from 100m high, and hit a person in the head [/quote]

Good thing i have a pasgt helmet for airsoft

I was going to do something of the sort, but i feel that it would be hard to make a cheap, refillable shell that's also safe. I feel if you put a shrader in the shell and a cap on that if the cap fell off it might pose a big risk. although it would make a very successful rapid fire system if you had...

Brian that looks very nice. I've made no progress whatsoever. All that's left is the $12 sprocket but I'm broke after using my last few $ on the cannon. After I cleanup. A little in my garage I can get back of task