My Cannons

[Canuck]

The first one i built was a pneumatic (ill post pic later), then i built the mini combustion and then my big combustion just last week.
Ill start with my mini combustion, I used:
-a chapstick container
-a pen tube
-a bit of electrical tape
-a long-nose lighters, igniter
- 2 thumb tacks
and thats about it
Heres my mini, next to a quarter.
Here you can see the green thumbtacks and the white igniter, and the rest which is pretty much self explanitory:P

Inside the mini's chamber (kinda blurred)

With that set-up it'll fired a spit ball 70 ft and hurt up to ~12ft (havnt tested it yet too much)

Heres my pride and joy... If you could call it that. I respect this thing pretty big. After its first test today, it show'd it wasnt a wuss.
I havnt put a real projectile in it just yet, i will tomorrow (june.7.08 ). Anyways with the tiniest bit of back pressure(I put a rag in it and paper towel after) , the thing is craaaazy loud.
Im talkin, OMMFG HoLy CwAp loud. yea. Anyways i used:
~1.5ft of 3" ABS Sch40 for my chamber
~5ft of 1.5" ABS Sch40 for the barrel
and connecting it all was a
3" to 1.5" reducer
3" coupling
3"cleanout adapter setup
Ignition is obtained via:
a Centro BBQ Electronic Ignition unit
and 3/8" bolt/nut/washer set-up for electrodes
Here it is standing its mighty 6.5ft height

The igniton box plus the toggle switch(on the left of the chamber) that I can move around

The electrode set-up


So yea, hope you enjoyed the write up! These spud guns are alot of fun, but i can see where it can get ya in alot of trouble:D

Anyways if you have any questions let me know, until then
have a good one.

Canuck

[uncomplientspud]

abs...you must live in canada , glad to another

[starman]

Nice efforts for your first guns. Your large gun is proportioned well for good performance. I'm not a "mini" man at all so..........

You did a pretty fair job on your presentation. However, I would like to encourage you to use better sentence/paragraph structure, capitalization and proper punctuation. It doesn't have to be perfect but it will pay off in respect from fellow Spudfilers.

[battlemonkey]

Two thumbs up good to see the spudding community is getting bigger

[Canuck]

lol, yea, I wrote up the article last night, and was kinda tired. Thanks for the comments and advice so far! I only used ABS because I heard it was better for combustions, my pneumatic is made of Sch40 PVC Yes I am Canadian.

[n-strike]

Isn't your barrel a little long? And do you by any chance...live in Vancouver, or near the area?

[Canuck]

Im in Ontario actually kinda far away, lol.
and yes my barrel is probably too long. the barrel is like 5-6ft long for a 1-1.5ft chamber. What length of barrel would you guys reccomend?
Today wasnt too much of a success. It fires but only about 100ft (rocks with a paper block behind it) . I was using 99% Rubbing alcohol, which works pretty good, not good enough though. Theres a product called "Hero anti-static and has all the flamable warnings on it. Is that the same as Static Guard?

Canuck

[n-strike]

Haha, it's because I live in Richmond and our hockey team is called the Vancouver Canucks. How long is your barrel?

[Canuck]

lol, yea I get that question alot, as I use it as my username often. I always thought of it as another way of saying Canadian .
The barrel length is 5 ft. Probably a bit too long?

[starman]

I always thought of it as another way of saying Canadian .

Indeed it is ... for lots of people...aye?...

[Canuck]

Its "eh" actually :P

[starman]

Its "eh" actually :P

Thanks! I was actually wondering what the "official" spelling of that was.

[n-strike]

Yea, it's "eh" pronounced as "aye". And yes, I think the barrel is a little too long. It also depends on your ammo though...so, what are you firing?

[starman]

Actually I think your barrel is fine, unless you just want a shorter one for logistical reasons.

I've moved to golfballs mostly, some potatos occasionally, a tennis ball once in a blue moon...nothing!! (just a noise cannon).

[n-strike]

You're lucky you have 1 1/2" PVC in your local hardware stores...all I have is fittings...