Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 60 users online :: 4 registered, 0 hidden and 56 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

High-Tech Spudgun

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
Sponsored 
  • Author
    Message

High-Tech Spudgun

Unread postAuthor: STHORNE » Tue Jul 01, 2008 9:58 pm

I'm sure I'm not the first person to link this video but I haven't seen anybody else post it and have seen it at least a couple dozen times searching for random stuff on youtube. It looks like a cool little project but I'm wondering what the labor and cost would be like and if it isn't terribly out of reach for one of those, "I'll get to it" projects.

Tell me what you guys think
[youtube]http://www.youtube.com/watch?v=_fnn7dtIics[/youtube]
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Unread postAuthor: VH_man » Tue Jul 01, 2008 10:04 pm

i think this was posted before.

would be pretty cool. if they had automated the loading process it would have recieved an A+ in my book, but they did 90% of it.... kinda cool i guess.
  • 0

User avatar
VH_man
Major General
Major General
 
Posts: 1827
Joined: Sat Dec 09, 2006 6:00 pm
Location: New Hampshire
Reputation: 1

Unread postAuthor: noob of noobs » Tue Jul 01, 2008 10:17 pm

That's awesome. But yeah, I do think a higher capacity for fire would be better. Maybe add more barrels... I might have to try to make a mini version of that on a RC car!
  • 0

User avatar
noob of noobs
Captain
Captain
 
Posts: 320
Joined: Tue Jun 12, 2007 8:04 pm
Location: Illinois, Skokie
Reputation: 0

Unread postAuthor: mister pointy » Tue Jul 01, 2008 10:44 pm

that thing is sick! The launchers themselves aren't incredibly advanced, but the control system is awesome. To make this thing really ultimate, maybe a camera could be mounted on it, with a separate receiver, and the controls hooked up to a wireless transmitter. Remote controlled destruction :twisted:
  • 0

User avatar
mister pointy
Private First Class
Private First Class
 
Posts: 38
Joined: Thu Jun 19, 2008 8:37 pm
Reputation: 0

Unread postAuthor: starman » Tue Jul 01, 2008 11:17 pm

That was actually more of a robotics project than a potato gun. He called it an "automatic" but I think that is a misnomer in terms of a real automatic. I would call it an automated potato gun. They were actually fairly basic combustions...one spark, no fan, no air inlets that I could tell other than the rear clean out....definitely basic and definitely not automatic.

The thing that most interested me was their use of fuel injectors. I have been contemplating experimenting with them some. It's nice to see someone has successfully used them. It seems their metering system was just the amount of time the injector was open...no way to tell if they had the propane regulated and at what pressure.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Unread postAuthor: THUNDERLORD » Tue Jul 01, 2008 11:46 pm

@Starman: What about an oxygen fuel sensor from a car intake?
IDK much about them but modern cars have more sophisticated computers than the moon lander.
Looked like a sensor similar sort of. But on second viewing I think it was just a timed spray of propane (1.5 sec.s)

The actual mount turret is not too complex either.
Someone could take apart the simplest remote toy car and wire it to bigger motors.
It's only two controls, Up /down and left/right.
Convert from left/ right steering and forward/ reverse maybe. pretty simple.

It would be cool if these were installed in bank drive throughs.
Or maybe one on my front door.
Hmmm, some day... I'd mount it to a flame thrower or mac-10 though. 8)

EDIT: Now that I think about it, a camera mount already swivels.
Just need a sturdy mount and trigger controller bolted on!
  • 0

-----SPEED,STRENGTH, AND ACCURACY.-----
"Procrastination" is five syllables for "Sloth".
Theopia 8)
Born To Be Alive!

THUNDERLORD
Major General
Major General
 
Posts: 1264
Joined: Fri Mar 28, 2008 1:42 pm
Reputation: 0

Unread postAuthor: starman » Wed Jul 02, 2008 12:05 am

THUNDERLORD wrote:@Starman: What about an oxygen fuel sensor from a car intake?
IDK much about them but modern cars have more sophisticated computers than the moon lander.
Looked like a sensor similar sort of. But on second viewing I think it was just a timed spray of propane (1.5 sec.s)


Yeah I don't know either...would need a smart automotive tech to help dissect that stuff. I'm sure it's not that difficult to comprehend. Their operation wouldn't need to be nearly as complex as it is while running an automobile.
  • 0

User avatar
starman
Donating Moderator
Donating Moderator
 
Posts: 3041
Joined: Wed Dec 12, 2007 12:45 am
Location: Simpsonville, SC
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Carlman » Wed Jul 02, 2008 12:06 am

yea seen it before mate, its not that good in terms of spud gunning if you think about it
  • 0

Image
Aussie spudders unite!!
User avatar
Carlman
Major General
Major General
 
Posts: 1618
Joined: Sat Nov 24, 2007 1:18 am
Location: Western Australia
Reputation: 0

Unread postAuthor: STHORNE » Wed Jul 02, 2008 1:59 pm

yeah, i know the guns themselves aren't advanced at all but as far as the automated mounting system, it's advanced as hell. looks pretty intimidating too.

it needs some chamber fans, some awesome sights, possibly an auto-loader, and a kick ass paint job.
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Unread postAuthor: SEAKING9006 » Wed Jul 02, 2008 5:06 pm

When they demonstrated the control system, it seemed like the motors were having trouble moving the turret around with any sort of speed. Also, this kind of system would be much better utilized with a pneumatic autogun or artillery piece, unless it utilized an automated reload system, as described above. Such a system wouldn't be difficult to implement, as if I'm not mistaken, they used micro controllers to control the system. I've wanted to learn how to work micro controllers for a while and do stuff with them.
  • 0

Completed projects:
CA1 SMSS Basic Inline
CA3 PDAB Airburst Cannon

Current Project: Bolt action rifle (25x140mm + 1in shot)

SEAKING9006
Colonel
Colonel
 
Posts: 734
Joined: Mon Jun 23, 2008 3:20 pm
Location: Texas
Reputation: 0

Unread postAuthor: STHORNE » Wed Jul 02, 2008 5:35 pm

I agree, for a mounting system that nice, they should have gone with a pneumatic system so they could have more accurate shots and meter the chamber pressure more efficiently. It would also allow for an automated reload system (like you said).

And yeah, I'm pretty sure they used micro controllers, if they didn't, there project box would be in a truck bed lol.
(btw, this is the kind of posting I wanna see. Sorry for being harsh yesterday, just been a long day and you were gettin on my nerves lol)
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Unread postAuthor: SEAKING9006 » Wed Jul 02, 2008 5:39 pm

It's cool, I was just used to boards with much faster post rates. (About 5 new posts a second.)
  • 0

Completed projects:
CA1 SMSS Basic Inline
CA3 PDAB Airburst Cannon

Current Project: Bolt action rifle (25x140mm + 1in shot)

SEAKING9006
Colonel
Colonel
 
Posts: 734
Joined: Mon Jun 23, 2008 3:20 pm
Location: Texas
Reputation: 0

Unread postAuthor: STHORNE » Wed Jul 02, 2008 5:40 pm

"to boards"?
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Unread postAuthor: SEAKING9006 » Wed Jul 02, 2008 5:42 pm

Yeah, that's what they called 'em back where I used to go. I tend to use the terms message board and forum interchangeably.
  • 0

Completed projects:
CA1 SMSS Basic Inline
CA3 PDAB Airburst Cannon

Current Project: Bolt action rifle (25x140mm + 1in shot)

SEAKING9006
Colonel
Colonel
 
Posts: 734
Joined: Mon Jun 23, 2008 3:20 pm
Location: Texas
Reputation: 0

Unread postAuthor: STHORNE » Wed Jul 02, 2008 5:43 pm

oh lol. stupid me
  • 0

Forum Rules - follow them or else!
“Happiness is the meaning and the purpose of life, the whole aim and end of human existence”
User avatar
STHORNE
Donating Member
Donating Member
 
Posts: 1208
Joined: Wed Feb 14, 2007 7:50 pm
Location: Kewaunee, Wisconsin
Reputation: 0

Next

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Majestic-12 [Bot], Yahoo [Bot]

Reputation System ©'