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mini hybrid win!

Post questions and info about hybrid (compressed gas with fuel) powered cannons here. This includes discussion about fuels, ratios, ignition systems, build types, safety, and anything else relevant.
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Unread postAuthor: JDP12 » Tue Sep 07, 2010 12:59 pm

That's a Jon well done, steel will definitely punch through that.

Love this project, wish I wasn't at college so I could work on projects.
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Unread postAuthor: jakethebeast » Tue Sep 07, 2010 2:37 pm

damn i need to make a mini hybrid, this thing is so damn awesome! :twisted:
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Unread postAuthor: POLAND_SPUD » Tue Sep 07, 2010 4:33 pm

NICE :D
so, fuelling is not an issue? Any idea where can I get BBC piezos (yeah I know that're using one from a lighter - I am asking about BBC piezos) ?

Sorry for going off topic, but does anyone know if it is possible to hack one of these to work on DC...
(these modules are used on gas ovens for creating a spark... That fact, and the fact that there are letters 'L' (for line I suppose) and 'N' (neutral) suggests that they run on AC... But why there '+' and '-' signs there ?? It's a bit confusing...) ->
http://allegro.pl/generator-zaplonu-isk ... 35616.html

EDIT
No... that particular model runs on AC....


But there are versions that run on DC and they are produced about 100 km from where I live!
Looky here
http://www.miflex.com.pl/eng/generatory/W09-2A.pdf

What do you think is it a good find ?
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Unread postAuthor: jackssmirkingrevenge » Tue Sep 07, 2010 6:48 pm

edit: I really should have turned off the PC before leaving the house :roll:
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Last edited by jackssmirkingrevenge on Tue Sep 07, 2010 11:51 pm, edited 1 time in total.
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Unread postAuthor: POLAND_SPUD » Tue Sep 07, 2010 7:09 pm

wtf is a bbc piezo? bri9tsjh brpadcasrtong corporatrion started making friiggin ignitors? ;lo,/l/

bout time we see you make a friggnngin hyrid Smile good luicjk Smile

ohh yeah it's BBQ :D sorry

THX

PUI FTW! lol I know I'd edit your post in the morning so I quoted it

:D
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Unread postAuthor: jackssmirkingrevenge » Tue Sep 07, 2010 11:53 pm

Any idea what's inside the unit you posted?

POLAND_SPUD wrote:ohh yeah it's BBQ :D sorry


Aren't BBQ ignitors just like cigarette lighter ignitors if you take them apart?

coffeeee.... paracetamooooollll
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Unread postAuthor: MrCrowley » Tue Sep 07, 2010 11:56 pm

So is this cannon just a prototype? You should find a better ignition, machine the chamber out of steel and up the mix! :)
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 08, 2010 12:10 am

MrCrowley wrote:So is this cannon just a prototype?


If performance is worthwhile, I want to finish it off with a proper grip and suppressor. So far it's borderline, I want to keep upping x until it no longer ignites reliably and go from there.

You should find a better ignition, machine the chamber out of steel and up the mix! :)


For the moment, I want to push the limits of what is achievable without having access to stunguns and a lathe, although I have to say, I certainly seem to have been bitten by the hybrid bug :) I still have that cartridge fed project I want to finish!
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Unread postAuthor: Insomniac » Wed Sep 08, 2010 1:08 am

How does this thing go for noise? Deafening, or merely irritating?
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 08, 2010 1:42 am

Insomniac wrote:How does this thing go for noise? Deafening, or merely irritating?


When the end plug blows out, deafening :roll: otherwise, loud but not *that* loud really, comparable to a HPA pneumatic with a good valve. You definitely know it's gone off :) but I had no problems testing it in an urban area with open windows. Firing without a projectile is significantly louder, but again not excessively so.

This afternoon I'll try 10x, 11x etc until it stops working, I also want to try some saboted 0.177" BBs to see how they perform against that pesky steel sheet...
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Unread postAuthor: POLAND_SPUD » Wed Sep 08, 2010 6:13 am

Aren't BBQ ignitors just like cigarette lighter ignitors if you take them apart?
AFAIK they are larger and last longer

Any idea what's inside the unit you posted?
No idea but it's a ready made module and depending on the exact model it can be used for up to 6 spark gaps

I got the reply from the manufacturer and I can get one for 6.5$ a piece - seems pretty cheap. These things are definitely considered as heavy duty stuff when compared with all those BBQ ignitiors produced in china.

suppressor
I hope it will work better than all the silencers for pneumatics
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 08, 2010 6:41 am

Interesting, in terms of mix numbers currently ignition is the only limiting factor I can see. I tried looking for something similar on eBay but to no avail. Maybe I should just go for a camera flash circuit...

I hope it will work better than all the silencers for pneumatics


Since heat is such a big factor when it comes to pressure generation in hybrids, I have high hopes for such a project. I'm thinking copper tube body with a couple of baffles and steel wool packing, once I'm tired of playing with mixes I'll give it a go.
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Unread postAuthor: JDP12 » Wed Sep 08, 2010 8:16 am

I'm confident you'll get through it with a higher mix.

How do you plan on sabotaging the .177" BB?
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Unread postAuthor: jackssmirkingrevenge » Wed Sep 08, 2010 8:41 am

JDP12 wrote:How do you plan on sabotaging the .177" BB?


Surely you mean "saboting" ;)

I was thinking of using this method using metal foil instead of paper, if it works well I'll make a proper how-to.

edit: This project persists in being made of WIN! :D some further results:

-saboted 0.177" steel BB (see pictures for foil sabot construction) - full penetration of a sheet of 0.6mm steel, denting a second sheet

-10 mix with lead pellet - first click ignition and full penetration of a sheet of 0.6mm steel

The question now is, do I quit while I'm winning, or go for 11x?
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Attachments
10xsteelentry.JPG
entry hole with a 0.22 pellet at 10x, note the pellet skirt to the left of the hole which separated on impact
foilsabotconstruction.JPG
self explanatory foil sabot construction for a 0.177" BB
9xbbentry.JPG
entry hole with saboted 0.177" BB, note that some flecks of foil from the sabot are visible next to the hole
9xbbdent.JPG
dent at the rear of a second steel sheet after initial 0.177" BB penetration
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Unread postAuthor: CpTn_lAw » Wed Sep 08, 2010 10:31 am

Nice!!!!!! You should really increase your barrel length, some impressive results may show up ;)
I'm doing a 10x shot in the next 5 minutes will a 2g lead sinker :P
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