i don't think a fan is necessary, i load the spud and leave it at the end of the barrel, then add propane, then ram the spud down the barrel, which doubles the air in the chamber and mixes the gas. i'm going to install dual sparkers in my chambers and fire them with a 150,000 volt stun gun. i plan o...

. I was recently "chided" for a proposed "projectile", i stand corrected, who reads "all" the rules before clicking "agree" to anything on the internet? our eyes usually glaze over after screen 2... So as long as you are new and have ignorance of the rules, it's okay? It's up to you to read all the...

but i doubt a potato could kill a man, not enough strong. my first spud gun generates 1400 lb/ft of energy with a potato, a head shot would cause massive trauma and death, a body shot would break a few bones, adding a little "extra" to the potato would cause more "damage". Demon, you don't want to ...

no human can see 500+ yards away to see if he/she will hit an animal or human Utter bollocks. On flat open ground, it's possible (for me at least, although bearing in mind my vision is above the human norm) to see a person a mile off, perhaps more. my vision is 20/16, i see better than most humans,...

it is against rules to talk about killing something living with a spud gun. people and large animals, i can understand. but there is always the "unintentional" possibility of death to any living being with the use of a spud gun on planet earth. a couple of years ago, a MLB pitcher killed a seagull w...

we have up to 6" sch 40 at home depot and 8" sch 40 at meynards (5 & 10 ft sections) 8" (about $90 for 10', if my memory serves me well) is more nose-bleed in cost and 6" is too rich for my blood at the moment. i split my purchases between meynards and HD, meynards has a better selection of sch 40 a...

i have 14 years of drawing board experience and almost 3 years of AutoCAD. i just think designs out in my head (combustions so far) and run B:C ratios on a simple calculator. i got my first sprinkler valve a few days ago, so i will begin my first pneumatic design soon. i may go with 2-3 air chambers...

Hey nice cannon you got there, i've given up on my combustion cant find anywhere to get a sparker, they sell them at this BBQ galore place for like 25 bucks, why dont i just go buy a freaking Sprinkler valve for 20 bucks an make a pneumatic :P Any way got ne damge pics, or vids? Thats a nice and cl...

The People's Socialist Republic of Chicago (aka ILL) but i got space to shoot my spudder.

I spent a week in spirit lake, iowa for a vacation, nice area there.

while having multiple barrels, i find different items will fit in them. the most interesting and destructive item was a chuck assembly from an electric drill. for a sabot, i used a slice of a potato. it went AWOL on the first shot (after completely penetrating a 14" CRT monitor)

Unless you consider that the minigun platform, aside from its higher rate of fire is apparently more stable and easier to aim than its gas-operated brethren... having more barrels would create a more stable thermal base, a single barrel would tend to melt faster, and the gas/spring combo has a phys...

hopefully, you'll use propane as a fuel, hair spray and deoderants have water in them and would foul those tiny gaps over time. maybe later you could move up to a stun gun ignition system.

they have a small drafting table w/drafting machine for $100 on e-bay (table is 24" x 32") true, it's not much good if you're using 12S mylar. http://cgi.ebay.com/Drafting-Table-with-Protractor-Arm-Drafting-Machine_W0QQitemZ300260021849QQcmdZViewItem?hash=item300260021849&_trkparms=72%3A1205%7C39%3A...

[quote="Ragnarok Now, when you talk about generating 1400 ft-lbs from a 1.5" D x 38" L barrel, would this be from this combustion ?[/quote] actually it is derived from a simple ballistics calculation. mass (in grains) x velocity(fps) x velocity(fps)/450,436=ft/lb there are 437.5 grains in a standard...

they have small DC fans, down to 40mm square for a realtively low price. http://www.geeks.com/products.asp?cat=FAN energy has nothing to do with volume, energy is determined by 2 factors, velocity and mass. my little 1.5" x 38" barrel (67ci) generates more energy than most handgun cartridges (1400 l...