PYSON

Boom! The classic potato gun harnesses the combustion of flammable vapor.
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Petitlu
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No I did not shoot the cannon as the reduction is not stuck ...
I retain the idea of balls :wink:
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jackssmirkingrevenge
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Petitlu wrote:I retain the idea of balls :wink:
Your wife must be happy :)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Petitlu
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yes very !

:D :D :D
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Petitlu
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New test, but that the PAL is assembled and glued.
The barrel is made ​​of PVC-P with holes D14mm, covered with transparent polycarbonate.
The rupture disc is aluminum, 7 sheets total, approximately 0.2mm, I did in snitch because I've never used aluminum sheets ... too thick? not enough?

The noise was terrible, a gunshot!

[youtube][/youtube]
Last edited by jrrdw on Sun Nov 17, 2013 10:44 am, edited 1 time in total.
Reason: Fixed video.
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Crna Legija
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very nice, look quite a bit different to the combustion, if you can put the disc in and fill with air until they burst then you will know if you need more.
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jackssmirkingrevenge
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Very cool! You immediately notice the moment that the disk bursts :)

So... 1.5x hybrid?

:D
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Petitlu
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Thank
This is what I do to test my steel discs!
I think the thickness is correct because the combustion is complete when the disc breaks.
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Petitlu
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To make a Mix1.5 or it will be more complicated because I put the fuel with a syringe fitted with a hose via the union.
The chamber is not obvious breakthrough of pressurize ...
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Labtecpower
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very nice :)

even on the video it sounds loud!
would there be a lot of difference between hybrid and athmospheric combustion?
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Petitlu
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Here I finished Pyson, this is my last spudgun.
I made several PAC, a hybrid and I end with a PAL original and rather nice.

Background characteristics:

Ratio: 1.61
Discount: 2.35

CHAMBER:
Material: Polycarbonate
Volume: 1450cc
Inside diameter: 80mm

BARREL:
Material: PVC and polycarbonate-P
Barrel diameter: 34mm
Barrel length: 100cm
Volume: 907cc
Barrel screwed to put a rupture disk: Leaves Alu - 8 layers -
Special feature: Holes 150mm 14mm all covered by a transparent polycarbonate tube to see the flames and "follow" the projectile along the barrel.

IGNITION:
Taser
Multipoint Electrode (4)

Image

[youtube][/youtube]
Last edited by jrrdw on Sun Nov 17, 2013 10:42 am, edited 1 time in total.
Reason: Fixed video.
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mattyzip77
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Very impressive. I love the clear chamber. seems you really thought this out and didnt just throw it together. Good work.
Go Bruins!!!!
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Petitlu
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Thank you!
I also love the flames in the chamber and barrel!
A night firing will be excellent I think
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