QEV valve Air Gun | Self Defense Pen

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  • čas přidán 30. 07. 2020
  • Tactical Pen | Air Operated For Self-Defense
    To pressurize the tube, a high pressure pump or bicycle pump is attached to the car tyre valve. This pushes the piston up against the barrel (piston function is to seal the barrel at the time of air filling), preventing any of the air from escaping. The piston doesn’t make a perfect seal agaist brass tube (piston can easily slide forward and backwards), so air leaks around it and pressurizes the main brass tube. The car tyre valve also prevents the air from leaking out of the pen body. When the car tyre valve stem is pressed, the air escapes, the sudden pressure imbalance causes the piston to shoot backwards(at the time of filling air the piston will be pressed against the barrel), opening up a path for the air to escape through the barrel. This escaping air propels the projectile.
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  • Jak na to + styl

Komentáře • 55

  • @rahulreddy7507
    @rahulreddy7507 Před 4 lety +14

    Unfortunately, when you search for "tactical pen diy", instead of something as good as this, you're shown garbage where people are glueing stones and other pieces onto pens. This is actually good quality stuff

  • @humayunali5663
    @humayunali5663 Před 4 lety +2

    Man you deserve millions of subscribers
    You are doing really great job
    It's all about talent

  • @CorruptionManX
    @CorruptionManX Před 3 lety

    You are amazing as always.

  • @abhishekvaru
    @abhishekvaru Před 3 lety

    This is Soooo Perfect

  • @winartopratama1666
    @winartopratama1666 Před 3 lety

    This is awesome dude. Damn i love it

  • @lunkprab
    @lunkprab Před 3 lety +6

    I used to build this long time ago. I never know that soldered wire could withstand such pressure! I used epoxy

    • @Max-tp8he
      @Max-tp8he Před 2 lety

      Is epoxy also that tough ?

  • @jessiecieloschannel3760
    @jessiecieloschannel3760 Před 3 měsíci

    Thank for sharing your idea, i'll try to make my own as did,.

  • @dreamboy2714
    @dreamboy2714 Před 2 lety

    OMG nice bro

  • @brogannicholas1599
    @brogannicholas1599 Před 4 lety +5

    Incredible my friend. I'd like to see other ways this could be used.

  • @alexman1970
    @alexman1970 Před 3 lety +1

    Красава! Надо сделать такой девайс))

  • @ahmadfathurahman7059
    @ahmadfathurahman7059 Před 4 lety +1

    First impressions is amazing

  • @KaDuGSiNG
    @KaDuGSiNG Před 4 lety

    You're so creative sir. Keep it up

  • @CottonTailJoe
    @CottonTailJoe Před 4 lety +4

    What is the psi?

  • @rafaelalves6148
    @rafaelalves6148 Před 4 lety +1

    Very good,here in Brazil tou is the best

  • @callofmemes5347
    @callofmemes5347 Před 2 lety +1

    Please can u show us how far it shoots?

  • @erautome
    @erautome Před 4 lety +4

    Principe Quick Exhaust Valve (QEV). Bien imaginé.

  • @poorbastard100
    @poorbastard100 Před 3 lety +2

    What kind of evil genius are you? i'm definetly

  • @farhankhan-mj6fp
    @farhankhan-mj6fp Před 4 lety

    Bro plz plz plz reply how to get the pellets.for.the gun u uplode in ur past vedio which is of 9mm i make it but cant find the pellets

  • @nhonhonhat7902
    @nhonhonhat7902 Před 3 lety

    Quá ảo diệu.

  • @ansarbasha8361
    @ansarbasha8361 Před rokem

    👌👌👌👌

  • @ioneide4290
    @ioneide4290 Před 4 lety +1

    Top...... like

  • @mimamaiksmika3853
    @mimamaiksmika3853 Před 8 měsíci

    can you make an bigger version of this plz

  • @vijaykorvekar1009
    @vijaykorvekar1009 Před 2 lety

    Max pressure you can fill it

  • @bro.official
    @bro.official Před 3 lety

    நண்பா பிஸ்டோன்ல பட்டன் pen ஓட spring வெச்சு இருந்த மோர் psi + minimum 2shots கெடைக்கும்ல...

  • @iamsky3920
    @iamsky3920 Před rokem

    How many psi can this thing withstand?

  • @oleyxiramirezramos4525

    Todos los que publicas está muy bueno,si sería tan amable de mandarme los plano y medida del pcp m4

  • @ariafathi4694
    @ariafathi4694 Před 2 lety

    Can 2 tyre valves be used, one as entry to charge the cylinder and the other as an exit (propellant) near hammer to shoot projectiles out? (To avoid using all the air at one shot) Or a tyre valve is not good to pump up the pressure in crown fast enough? ❤

  • @d.clevhage9650
    @d.clevhage9650 Před 2 lety

    You're A Genius, I Have A Great Challenge: Can You Integrate A Small Standard CO2 Cartridge As An Air Source Instead Of
    A Pump, It Should Be The Ultimate Self-Defense Weapon, Especially If You Could Puncture The Cartridge First In Use? . . . .

  • @carlreiner2914
    @carlreiner2914 Před 3 lety

    Any new videos?

  • @nerfsnipertitan1411
    @nerfsnipertitan1411 Před 4 lety +1

    Make a 20mm Anti material air rifle length of 4meters long

  • @nerfsnipertitan1411
    @nerfsnipertitan1411 Před 4 lety

    Make a 3meter long Anti material rifle

  • @leepalmer3634
    @leepalmer3634 Před 3 lety

    Are you willing to make a dozen and ship to USA?

  • @user-ni5lv1kk1y
    @user-ni5lv1kk1y Před 2 lety

    什么原理,为什么不会在气嘴哪里漏气?

  • @sirhenry9620
    @sirhenry9620 Před 3 lety

    Where to contact you? I am from India

  • @user-qq1ul3qy8g
    @user-qq1ul3qy8g Před 3 lety

    Making bullet qev airgun automatic

  • @bro.official
    @bro.official Před 3 lety

    நண்பா ஈசி ஆனா ball valve கன் செஞ்சு போடு நண்பா

  • @gaurabpattnaik1383
    @gaurabpattnaik1383 Před 4 lety

    Can available I'd 6.35mm brass tube ??

    • @faceoff2
      @faceoff2  Před 4 lety

      I got it from a hardware shop

  • @emjerml6647
    @emjerml6647 Před 3 lety

    the mechanism is confusing

  • @user-iq8tg8fn4t
    @user-iq8tg8fn4t Před 4 lety

    牛逼

  • @dictat0r
    @dictat0r Před 3 lety

    А как она работает я чë тот не понял🤔

    • @ChebuplZZa
      @ChebuplZZa Před 3 lety +1

      Ствол находится в резервуаре.
      в нем же, за стволом, вставлен поршень(между стенками и поршнем есть небольшой зазор)
      За поршнем герметично вставлен клапан, через который в ручку заканчивается воздух
      Через зазор между стенками и поршнем воздух попадает в основную камеру(вокруг ствола)
      При нажатии на клапан, давление за поршнем понижается, из-за этого он отходит назад. В ствол выходит основной объем воздуха, выталкивая снаряд.
      Не думаю, что от моего объяснения стало понятнее ;)

    • @dictat0r
      @dictat0r Před 3 lety +1

      @@ChebuplZZa спасибо, дошло))

  • @d.clevhage9650
    @d.clevhage9650 Před 2 lety

    You're A Genius, I Have A Great Challenge: Can You Integrate A Small Standard CO2 Cartridge As An Air Source Instead Of
    A Pump, It Should Be The Ultimate Self-Defense Weapon, Especially If You Could Puncture The Cartridge First In Use? . . . .

  • @d.clevhage9650
    @d.clevhage9650 Před 2 lety

    You're A Genius, I Have A Great Challenge: Can You Integrate A Small Standard CO2 Cartridge As An Air Source Instead Of
    A Pump, It Should Be The Ultimate Self-Defense Weapon, Especially If You Could Puncture The Cartridge First In Use? . . . .