LONG RANGE CANNON

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 4:10 pm

This is a rough sketch of the next cannon i am working on. The drawing is not accurate, but it will hava a control panel and cup holders. It will have a 10 foot golf ball barrel and can also interchange to a 5 foot long 3" barrel. It will have a 6" chamber 15" long using metered propane. The stand will include an air cylinder to adjust the elevation; to adjust windage you just kick the the corner of the stand in the direction you want it to go :wink: . The ignition will be using a disposable camera and the 3 electrode set up. The cannon is due to be done by New Years Eve. IF any suggestions please post.
Attachments
Rough Drawing
Rough Drawing
User avatar
Bluetooth
Corporal 4
Corporal 4
Posts: 863
Joined: Tue Jun 27, 2006 7:57 am

Sat Dec 23, 2006 4:17 pm

I strongly advise you not to use the three electrode setup. I tried it and had lots of problems. It is very hard to get the electrodes so close and perfect. Just buy a step-up transformer and a relay. It'll save you a lot of time and trouble.
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 8:37 pm

Thanks for the insight. I have not had problems with it though, yet. If I do have any problems with it I will probably go with a taser igniter.
</script></font><p><font>&copy;2006 Google</font></p></center></body></html>
User avatar
mark.f
Sergeant Major 4
Sergeant Major 4
Eritrea
Posts: 3627
Joined: Sat May 06, 2006 11:18 am
Location: The Big Steezy
Has thanked: 52 times
Been thanked: 53 times
Contact:

Donating Members

Sat Dec 23, 2006 9:33 pm

Karpa! I got the 6" fittings yesterday. You owe me about 45 bucks whenever the invoice gets here. Had to hose em off because they had all sorts of dust and crap all over em. :?

And trust me, karpa... if we can't get the three electrode system to work, I'll eat my hat. I just threw together a test rig together early this morning. Still works like the first time.

Did you get the golf-ball barrel yet?
User avatar
Bluetooth
Corporal 4
Corporal 4
Posts: 863
Joined: Tue Jun 27, 2006 7:57 am

Sat Dec 23, 2006 9:34 pm

You two are building it together?
User avatar
schmanman
Staff Sergeant 2
Staff Sergeant 2
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Contact:

Sat Dec 23, 2006 9:45 pm

a 15 inch long, 6 inch diameter chamber? cool.

markfh11q, now you know how I feel. :lol: :wink:
Persistence is a measure of faith in yourself
User avatar
mark.f
Sergeant Major 4
Sergeant Major 4
Eritrea
Posts: 3627
Joined: Sat May 06, 2006 11:18 am
Location: The Big Steezy
Has thanked: 52 times
Been thanked: 53 times
Contact:

Donating Members

Sat Dec 23, 2006 9:47 pm

No. I'm just a "consultant". :lol:

Mainly, I'm his hookup with parts and fittings. He's just using my McMaster account.

So far, we've got the pneumatics for elevation in and I hooked em up to the 4-way control and fill control, and then I got all the large diameter fittings shipped in yesterday.

He's still the mastermind behind the whole thing.

EDIT:
schmanmann wrote: markfh11q, now you know how I feel. :Laughing: :Wink:
What, hosing crap off stuff, or waiting for invoices? :P
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 10:01 pm

I got the SDR-21 but I still need to get the 2" SCH-80 because Dawsey didnt have it. Its going to be hard to get any time soon because of Christmas and all. I got the switches and the regulator and I also built the frame today, fits in my trailer nicely. I will get you the money anytime just let me know when. Find out when you can make it over also.
Last edited by Binder17 on Sat Dec 23, 2006 11:39 pm, edited 1 time in total.
</script></font><p><font>&copy;2006 Google</font></p></center></body></html>
User avatar
Bluetooth
Corporal 4
Corporal 4
Posts: 863
Joined: Tue Jun 27, 2006 7:57 am

Sat Dec 23, 2006 10:12 pm

Your making something this big and its not even gonna be a pneumatic :? :( :cry: ?
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 10:24 pm

Well, I'm more of a combustion guy. I also like it because it requires the design to be more complicated. It basically gives me something to do this holiday.
</script></font><p><font>&copy;2006 Google</font></p></center></body></html>
User avatar
schmanman
Staff Sergeant 2
Staff Sergeant 2
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Contact:

Sat Dec 23, 2006 10:27 pm

Binder17 wrote: It basically gives me something to do this holiday.
yes, that is why a lot of cannons get built around this time. take prof, for instance.... :lol:
Persistence is a measure of faith in yourself
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 10:31 pm

This is just my only chance to work on a project like this. Otherwise I have to worry about school and what not. This is also the first cannon I have built in about a year. When I was out of school after the hurricane I had plenty of time.
</script></font><p><font>&copy;2006 Google</font></p></center></body></html>
User avatar
schmanman
Staff Sergeant 2
Staff Sergeant 2
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Contact:

Sat Dec 23, 2006 10:46 pm

where do you live? florida? Louisiana?
Persistence is a measure of faith in yourself
User avatar
Binder17
Specialist
Specialist
Posts: 105
Joined: Sat Dec 23, 2006 3:40 pm
Location: The Colony, TX
Contact:

Sat Dec 23, 2006 10:48 pm

Louisiana. About 30 miles north of New Orleans.
</script></font><p><font>&copy;2006 Google</font></p></center></body></html>
User avatar
schmanman
Staff Sergeant 2
Staff Sergeant 2
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Contact:

Sat Dec 23, 2006 10:56 pm

oh. did you get hit hard by the hurricane?
Persistence is a measure of faith in yourself
Post Reply