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 69 users online :: 4 registered, 0 hidden and 65 guests


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

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

Electric BBQ ignitor setup

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

Unread postAuthor: chenslee » Fri Sep 04, 2009 1:03 pm

It makes two sparks, not three. The middle electrode is ground. The outer electrodes are positive.

It's in the instruction sheet. You attach the ground electrode to the frame of you BBQ. The other two each go to a burner.

I've tested this extensively on my fingers and friends. I had a riot with it laying on my desk at work.
  • 0

User avatar
chenslee
Donating Member
Donating Member
 
Posts: 147
Joined: Thu Jan 29, 2009 2:25 pm
Reputation: 0

Unread postAuthor: slogfilet » Fri Sep 04, 2009 3:31 pm

While it makes sense that one of the 3 leads would be ground, the instructions seem to indicate that 3 sparks are possible. When using all 3 electrodes, no ground wire is attached to the control box.

So... what if I placed each electrode through the outside of the chamber, pointing toward the center, then mounted a metal rod perpendicular to the 'trode axes, with a 3/16" gap or so between the rod and each electrode.

If anyone's curious, I'd be happy to scan in a copy of the instructions.
  • 0


slogfilet
Private
Private
 
Posts: 7
Joined: Wed Sep 02, 2009 1:52 pm
Reputation: 0

Unread postAuthor: chenslee » Mon Sep 07, 2009 10:08 pm

Look, I just went out in the garage and verified this. You have two + and one - on that BBQ sparker. Touch the two outer electrodes with your fingers and light it off. 1 of two things happen. Either it jumps the gap from the middle, or nothing happens depending on how far apart your fingers are.

Save yourself the trouble of drilling the third hole. The electrons have to go somewhere.
  • 0

User avatar
chenslee
Donating Member
Donating Member
 
Posts: 147
Joined: Thu Jan 29, 2009 2:25 pm
Reputation: 0

Unread postAuthor: wngovr » Mon Sep 07, 2009 11:49 pm

Heres a a pic , there's 3 sparks.[/img]
  • 0

Attachments
spark x 3.JPG

wngovr
Donating Member
Donating Member
 
Posts: 43
Joined: Sat Apr 19, 2008 5:09 pm
Location: georgia
Reputation: 0

Unread postAuthor: Hotwired » Tue Sep 08, 2009 12:07 am

Three sparks merely means three spark gaps.

Given that you seem to have chained the two screws together with no other connection it means there's no ground wire anywhere.

In other words one of the three leads coming from the box IS ground and the spark is merely the spark from the other two jumping its second gap.
  • 0

User avatar
Hotwired
Lieutenant General
Lieutenant General
 
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK
Reputation: 0

Unread postAuthor: wngovr » Tue Sep 08, 2009 12:40 am

Right. The current travels from the two side terminals to the center one. But it makes 3 sparks as it is designed to. Also i've noticed that if I use only one side to the center, the spark doesn't seem to have that nice blue color that they have when all 3 are going.
  • 0


wngovr
Donating Member
Donating Member
 
Posts: 43
Joined: Sat Apr 19, 2008 5:09 pm
Location: georgia
Reputation: 0

Unread postAuthor: Hotwired » Tue Sep 08, 2009 12:48 am

Did you ground the unused terminal?

If not you're causing the coil for that terminal to create electrical pulses back to the circuit as its field collapses as well as screwing with the fields on the other coil as they both use the same primary.

In other words it will be much less efficient and possibly damaging the circuit.
  • 0

User avatar
Hotwired
Lieutenant General
Lieutenant General
 
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: wngovr » Tue Sep 08, 2009 1:07 am

OK so if he's going to use this on a plastic launcher, what would he ground it to? The next terminal? Ya, I just tried it. That works . Man that thing is kind of powerful. I keep shocking myself.

I don't know but it seems it would be better to use the 3 sparks.
  • 0


wngovr
Donating Member
Donating Member
 
Posts: 43
Joined: Sat Apr 19, 2008 5:09 pm
Location: georgia
Reputation: 0

Unread postAuthor: Technician1002 » Tue Sep 08, 2009 1:48 am

Hotwired wrote:Three sparks merely means three spark gaps.

Given that you seem to have chained the two screws together with no other connection it means there's no ground wire anywhere.

In other words one of the three leads coming from the box IS ground and the spark is merely the spark from the other two jumping its second gap.


In actuality, the 3 nails connected together with the red and black jumpers would be the ground. If using only two burners, the center arc would be eliminated by grounding the center terminal by shorting across the center arc to the jumpers common. This can be used with 2 or 3 arcs.
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: Hotwired » Tue Sep 08, 2009 9:35 am

Grounding the ground?

If the three screws were not permitted to arc to the central terminal both the other sparks would fail.

Why would you call the spark strip itself the ground.
  • 0

User avatar
Hotwired
Lieutenant General
Lieutenant General
 
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK
Reputation: 0

Unread postAuthor: chenslee » Tue Sep 08, 2009 10:51 am

I'm with wngovr now. When using this with a grill, the two + electrodes jump over to the burners and into the frame of the BBQ. The third negative electrode jumps spark from the third burner back to the ignitor.

In the picture, the upper nails represent the burners of the grill, and the lower nails represent the electrodes.
  • 0

User avatar
chenslee
Donating Member
Donating Member
 
Posts: 147
Joined: Thu Jan 29, 2009 2:25 pm
Reputation: 0

Unread postAuthor: jimmy101 » Tue Sep 08, 2009 11:14 am

slogfilet wrote:So... what if I placed each electrode through the outside of the chamber, pointing toward the center, then mounted a metal rod perpendicular to the 'trode axes, with a 3/16" gap or so between the rod and each electrode.
That's probably more trouble than it is worth and I would suspect it'll drop perfomance by a small amount. (That long metal electrode is going to suck up a fair amount of heat.)

Just put 2 sets of screws in (or three if that is what the sparker actually has). Simple. Don't have to figure out how to mount a piece of metal parallel to the chamber axis. On one side of the gun the two electrodes are connected together and returned to the spark generator's ground contact. The other side has two wires to the spark generator.
  • 0

Image

jimmy101
Lieutenant General
Lieutenant General
 
Posts: 3127
Joined: Wed Mar 28, 2007 9:48 am
Location: Greenwood, Indiana
Country: United States (us)
Reputation: 7

Unread postAuthor: slogfilet » Tue Sep 08, 2009 11:23 am

Thanks everyone! That helps immensely.

Jimmy - I think that would be the easiest way to set it up, good call. Now I just need to think of a "dramatic" presentation of the external wiring... going for the wow factor with friends and family. :D
  • 0


slogfilet
Private
Private
 
Posts: 7
Joined: Wed Sep 02, 2009 1:52 pm
Reputation: 0

Previous

Return to Combustion Cannon Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'