Vehicles Thread
 

heres a place to post all of your spud cannon equipped , motorized, rocket propelled-NON rc vehicles

were wayy off topic for the "good deal thread"

Won 1st place in the school. 0.55 seconds on a ~80ft track with a 13g co2 cartridge.
http://i160.photobucket.com/albums/t...X/IM006036.jpg

Here's my most recent conversion:


http://i52.photobucket.com/albums/g4...shuttle_13.jpg

if that is your potato gun I hope you didnt use ABS pipe

Naw it's not mine. I Googled all of the images and cut/pasted them together. It appears to be painted PVC pipe anyways.

http://www.davemilcarek.com/031608/p...%20014.htm
thats my car

:great:

Check out my old robotics teams robots. I was team captain/driver!
http://i28.photobucket.com/albums/c2...5057788_MA.jpg

http://i28.photobucket.com/albums/c2...s/DSC_0229.jpg

yay first robotics!!!

TEAM 87 here!!! w00t

That's quite a hard launch. It must have been a good run!

yeah it was on a decent run, mid 7.9 in the 1/8th mile (half normal length) at about 82mph,
usually about a 1.65 60ft

not bad for a single cylinder and centrifugal clutch :yes:

Heres are robot,
http://i152.photobucket.com/albums/s...naciorobot.jpg

in the really skinny black kid in the back..

capes are badass :yipi:

W00t Team 87

I would say that you guys look stupid, but that is really cool, and the capes do set off the whole thing...

Without the robot they might look a bit out of place. Unless you wear dead president masks. That would be really cool, although you may get arrested...

I figured you wer that "random black kid", or PC = "The lonely African-American youth"

haha, thanks linc:rofl:

HEY i know you could use another finned can 8xl right?

Yeah, I need another motor??? Where have you been?

on the moon-duh.

seriously though do you happen to have like a 9xl or 10xl? to trade across?

PMed you about the motor bb16. :wink:

replied.. have NO money

how come the brotha's got to be in the back?...whats up with that?....

because a few seconds earlier i was actually working on it :D

Looks to me like they put the best looking guys in the back... What does the guy in the front have on his arm, a giant calculator? Is he some sort of "cracker" flava flav?

Someone say robot?

http://russ.angrypacket.com/gallery/...serialNumber=2

Not mine, but I got to take it apart, upgrade and put it back together.
I also got to shoot the weapon during competitions. :)

its actually a tv remote, this years challenge incorporated an infared control board to guide the robot througth the first 15 seconds of the match- called hybrid or autonomous mode

he was our asian power ranger.. :rotfl:

I suppose I'll do a spud gun showcase. Go to www.spudfiles.com for all your spud gun planning needs.

Specs:
6' barrel
16" combustion chamber
2 spark bbq ignition
.8:1 C:B ratio
Metered Propane fueled
10 seconds of airtime shooting straight up on an average shot
Cost about 65 dollars for gun and meter
Not very accurate
Towers 7 1/2' tall

Anything else you want to know just ask me.:lol:

Can I get fries with that?

Nope, we're out of fries. Are some tots ok?:lol:

speaking of potatoe guns when I was making them I would aim for the barrel to be twice as long as the combustion chamber, and also getting the fuel and air mixture right was critical...as far as fuel I never used propane...in the beginning I used Right Guard pit spay but it can leave a funky smell and also the less you use the better...my fav fuel turned out to be the spray Orange engine degreaser( it shares some of the same ingredients as gun powder mostly Carbon and Sulfur)

here is a link to some fuels that have been tried

http://www.aaroncake.net/spuds/boom.asp

Antimatter:

PROs: Reacts with regular matter emmiting 100% photons at 100% efficiency, projectile should easily reach the Earth's escape velocity, excellent muzzle flash (once), no residue (no gun either), very little fuel needed per shot (a few billionths of a gram).

CONs: Chamber could possibly comprise of rings of high speed rotating magnets (expensive) to avoid fuel contact with chamber walls (bad), hard to transport (expensive), hard to obtain (expensive), may result in a negative effect on the Earth's natural rotation and balance (bad), very dangerous (a helmet and eye protection should be worn).

:rofl: :lol: Yes, I know. I added some things... :oh:

It's a toss-up between antimatter and hairspray... :whistle:

i gots a potato gun, hmm i should shoot it today

is yours 7 feet tall? mine is :D

I've got a 5 foot egg launcher. Spring powered, and fairly accurate. I'll see if I can find it today and take some pics.

I did find the anti matter amusing.....:lol:

I used to use aqua net because it was cheap and came in big cans, but it still seemed difficult to get the mixture just right. When it worked, though...heheh.
I'll hafta build another and try out that orange cleaner stuff, though...sounds promising.

Most aerosols just need to be help upside-down so that you only inject the propellant. :mdr:

Harispray is really messy and leaves a lot of residue. Not very reliable...

Propane is very clean, almost an ideal fuel for spud guns... No residue and one of the more powerful fuels.

I think the best fuel would be a compressed mixture of oxygen and a fuel, but that would be very dangerous... In this case propane and oxygen - 190x mix.:rofl: I think that is 190x the volume of the chamber. I want to say it's 190psi of propane/oxygen, but I'm not sure. It's a beast. This guy has some machining skills. It can shoot a steel projectile clear through 10mm of steel.:surprised:

http://www.spudfiles.com/forums/lard...20-t15524.html

I may just have to try antimatter...:yipi:

I would stay away from pure oxygen I have dealt with industrial furnaces that use pure oxygen instead of air as an oxidizer and it is very flammable...and 190 psi is exceeding the PVC capabilities...I have seen using compressed air and it seemed safe enough and was impressive

I wouldn't compress anything in pvc... The compressed oxygen and propane was in a machined hardened steel chamber. Propane with no oxidizer and no pressure is about the most you can go with pvc.

That larse bloke is nuts- basically built himself an anti-tank cannon and a.... plasma cannon?! of sorts...

I forgot this one...

Hydrogen Fused with initial Uranium-235 Fission.

Pros: Extremely powerful. Causes potato to vaporize, and Ions cause the formation of "Potato plasma". Yields an expansion rate of around 345,000,000m per second.

Cons: To avoid the critical nuclear mass causing the nearest 30 miles to be completely vaporized, it is advised that you have 43 inches of depleted uranium reactor shielding, and a sustained electromagnetic field with a charge of 45 Kw handy.

AND this one...

Angry Wife chasing spud stealing Husband:

Pros: Spud can travel far distances and around corners.

Cons: Wife is in much better shape than me!

:lol: