need help and conseils thank you

Boom! The classic potato gun harnesses the combustion of flammable vapor.
romelectrofr
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Hello i am french and i have try to make an new spud gun this is my 4 th spud gum
but he don't shoot i have an flash electronic allumage fonctionnal
and an fonctionnal ventalation systeme butvi think
he don't shoot because the ventilator can't left
the propane enter in the combustion chamber and i want
try an direct gaz injection systeme i use gaz of
deodorant can you help me [img] thank you
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jackssmirkingrevenge
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[youtube][/youtube]
hectmarr wrote:You have to make many weapons, because this field is long and short life
romelectrofr
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thank you i will try
romelectrofr
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My spud gun shoot but the combustion in the chamber is very
rare and i want injecte comburant on my chamber but i don't
Know how to with h2o2 35% or with pure oxygen bottle or with simple
bike pump inject exterioor air in chamber ?
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jackssmirkingrevenge
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Quelle est votre système d'allumage, peut-on le voir?
hectmarr wrote:You have to make many weapons, because this field is long and short life
romelectrofr
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J'utilise un simple allumage de flash d'appareil photo il fonctionne 10
fois sur 10 le probleme ne provient pas de l'allumage je pense

i use an flash allumage he is very good this is don't the problem
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jackssmirkingrevenge
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how big is your spark gap?
hectmarr wrote:You have to make many weapons, because this field is long and short life
romelectrofr
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Sorry i don' understand sorry for my english
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jackssmirkingrevenge
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Quelle est la distance entre vos électrodes?
hectmarr wrote:You have to make many weapons, because this field is long and short life
romelectrofr
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Environ 2mm

2mm
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jackssmirkingrevenge
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Trop petit! Try 5mm and see if you get more reliable firing :)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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