im in.


(message too short ??? - just let me psot goddam it ! )

i found that the disposable camera ignition system was really dodge and only worked for 6 times then you needed to adjust the sparkers closer. I think that your much better sticking with a BBQ igniter then this unreliable system.

Also it takes 3-4sec to charge up the cap. which makes it a pain if ...

Another ignition source is the good old flyback transformer that is used in tv's and CRT computer monoters. They are everywhare but you need to know alot about electronics. Also it is usually very hard to find pinouts of the flyback trnasformers.
But apart from all that - its a really cheap form of ...

Hey Gort,
Absoultly mad gun - and the name blue flame suits it so well :twisted:.
i am building one nearly exactly the same but with-out interchangable barrels and with a normal PCV combustion chamber (not see-through).
also thinking of changing your design slightly and adding another handle with a ...

Im turning 18 in 2 months - then i have to pay taxs and vote.....
life never gets any better - but at least HSC is nearly over....

Oh wait - now im legally responsable for my actions as well..... bummer.

Oh, now i can also drink legally - takes all the fun outa it.

what is my life comming too ...

When i rang up and asked, they said they sold it by the meter as well as in 6m lengths.

To buy in meter lengths was $4 more expensive per meter than if you bought in 6m lots.

I called the store at atarmon...

next time ask for Vindex pressure pipe PN12 or Vindex pressure pipe PN18

Hope this helps ...

Ebay is good, there around $3 (not including postage)

Sweet

Would love to see some pics Extrusion !!!

Was wonderinf if a over- under Combustion cannon is less powerful than a straight.

Would it not matter as the combustion has to go somewear ?

Thanks
Will

Vinidex Pressure pipe isnt iplex

even if it was - my combustion cannon is handling propane fine....

Also....
The general physical properties of PVC are given in Table 2.1

anyways....

Thanks 4 the heads up

Will

i used to do that expirememnt at school, and then i made one for myself at home - caus i was a bit of a pyro (nothings really changed)

We used custard powder as it was fine and seamed to work better than caster suger.

We had a candle lit in a large coffee tin and a pipe leading into the tin that ...

I bought the pipe in a 1m and 2m lot at reece.

Nice find on the pipe specs rna_duelers

rember

18 bar = 1800KPA (or 261psi) = MASSIVE :twisted:

that should give a gook kick if you got a compresser thats that powerful :D

but when i talked to the lady over the phone, she asked what i needed the high pressure pipe for and i told her that it was a potato cannon and she gave me a ...

Check out this post for info on prices on PVC

http://www.spudfiles.com/forums/viewtopic.php?t=3393&

Hope this helps.

btw: reece has heaps of pressure pipe

Ok, been researching this shitloads and found a couple of supplyers and the specs of their pipe.

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Reece sells Vinidex Pressure pipe.
This comes in two varities that can be used in spud cannons:

PN12 = Rated to 1200KPA (or 174psi)
PN18 = Rated to 1800KPA (or 261psi)

I got quoted over ...