Best way to wire up sparks in a chamber?

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
Thursto
Specialist 3
Specialist 3
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills

Sat Sep 15, 2007 7:03 am

Hey all, ive made a few little cheap combustions lately and am soon going to make a proper one. My question is what is the best way to wire up a spark system? I have a little sparker out of a bbq lighter/longnose lighter. The picture below is my deisgn, not a final design, but i want it to look something like that, it will have a T junction with a screw on cap at the bottem for injecting fuel (spray deoderant etc), not sure how im going to attach my stock, that im yet to make/buy. Just wondering what the best way to wire it all up is, so that it sparks everytime, and hopefully fires everytime, first click. i was thinking of mounting the sparker in like a gun handle, infront somewhere of the T junction

Many thanks, Thursto!

EDIT: The picture of a gun handle is what i am intending to case my sparker trigger in. sorry about the blury pic, was taken on my phone, dont have my cam atm.[/img]
Attachments
My quick design:
My quick design:
Untitled.jpg (7.42 KiB) Viewed 2547 times
Photo-0041.jpg
Photo-0041.jpg (28.96 KiB) Viewed 2537 times
Last edited by Thursto on Sat Sep 15, 2007 7:43 am, edited 1 time in total.
User avatar
Marco321
Corporal
Corporal
Posts: 540
Joined: Tue May 15, 2007 2:56 am
Location: Sydney, Australia

Sat Sep 15, 2007 7:27 am

I must say i really like your design.

I have a suggestion i did for a handle in a Tee for one of my first combustion spud guns. I went to a BBQ seller and brought a BBQ igniter, not a lighter, but one of those buttons you push on a BBQ, it has 2 leads coming out, it was about AU$15. I just drilled a hole for the button, put it in the tee and had 2 leads coming out into 2 screws i tapped into the chamber. It worked very well and was very comfortable to hold.

EDIT: I just cut the top of the tee in half and glued it into the chamber, it didn't have combustion going into the handle.
Failure to plan is planning to fail.

The 7 P's - Proper Prior Preparation Prevents Piss Poor Performance
User avatar
Thursto
Specialist 3
Specialist 3
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills

Sat Sep 15, 2007 7:34 am

Hey marco, thats not a bad idea, but not what im looking for, ill probs end up doing it like that, wires attach to electric conducting metal rods leading into the chamber.

Thanks very much, thursto!
Blackett
Specialist
Specialist
Posts: 105
Joined: Wed Apr 18, 2007 10:07 pm

Sat Sep 15, 2007 3:07 pm

Those pitifully small little black piezos are (at least for me) the most unreliable things ever. I would put that 15AU towards a stungun, and just put a momentary switch in that nice handle you have.

and nice design you have yourself there, but where are you going to mount your handle if you need to take the bottom off all the time to add your incendiary.

putting it in front of the actual bottom tee part may pose a problem as to where your arm goes when pulling the trigger.

If you cant get a stungun go for a regular bbq piezo and use it to wire two sparks instead of one.

just out of curiosity, what's your stock going to be made out of? I'm sure you can get some crutches from somewhere that would work good for that.
User avatar
boilingleadbath
Staff Sergeant 2
Staff Sergeant 2
Posts: 1635
Joined: Sat Mar 12, 2005 10:35 pm
Location: Pennsylvania, USA

Sun Sep 16, 2007 3:18 pm

You should change the stock angle (err... "pitch") to something more conventional... I'm expecting that you'll find it:
1) slides off your sholder
2) makes the felt recoil worse
User avatar
Thursto
Specialist 3
Specialist 3
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills

Mon Sep 17, 2007 1:10 am

boilingleadbath wrote:You should change the stock angle (err... "pitch") to something more conventional... I'm expecting that you'll find it:
1) slides off your sholder
2) makes the felt recoil worse
doesnt matter anyway, went to my local hardware store, got a T junction but it didnt have threaded cap for the bottem bit, didnt have fittings to make it threaded, so i have to make a whole new design. any ideas/suggestions would be great!
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26204
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 572 times
Been thanked: 345 times

Donating Members

Mon Sep 17, 2007 1:36 am

Best way to wire up sparks in a chamber?
not like this :D
hectmarr wrote:You have to make many weapons, because this field is long and short life
Novacastrian
Staff Sergeant 2
Staff Sergeant 2
Posts: 1603
Joined: Sat Aug 11, 2007 6:59 pm
Been thanked: 1 time

Mon Sep 17, 2007 2:35 am

HAHAHAHAHAHA, What a weapon!! :oops: :oops: :oops:
User avatar
Redcoat
Corporal 4
Corporal 4
Posts: 835
Joined: Tue Feb 13, 2007 1:07 am
Location: Sydney ,Australia
Contact:

Mon Sep 17, 2007 2:42 am

That's an awesome gun!!!!

From looking at the url i think it's one of Strangers's. :P .
Poo.
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26204
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 572 times
Been thanked: 345 times

Donating Members

Mon Sep 17, 2007 3:34 am

Redcoat wrote:From looking at the url i think it's one of Strangers's. :P .
well spotted :D
hectmarr wrote:You have to make many weapons, because this field is long and short life
Post Reply