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Introduction:


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    286 Discussions

    0
    LiftAndLove
    LiftAndLove

    7 years ago on Introduction

    In the US, you don't need a 'gun license', because it doesn't exist. You need a 200$ tax stamp, and a Class III/II Weapons License to buy a silencer.

    0
    bighead5454
    bighead5454

    8 years ago on Introduction

    Would a shorter barrel increase or decrease power? It would provide less friction on the ammo, but also provide less length for the pressure to push the ammo, so which would prevail?

    0
    de0509
    de0509

    Reply 8 years ago on Introduction

    barrel length shouldnt "increase" power. it merely makes the energy more efficient. with a short barrel, the projectile gets out fast and the extra pressure will be ejected as well and just wasted. try measure your pressure in atm. it would roughly indicate how much it would expand. i.e. 2 atm will expand to 2 times the chamber volume.

    now V = Ad. and we know that the cross sectional area of the pipes are roughly same. so just use length instead of volume
    . i.e. 50 cm pipe for chamber at 3 atm shold expand to 150cm.

    chamber length + barrel length = final length of air
    50 + X = 150
    X = 100
    so no use of making the barrel longer than 100 cm.

    but remember that friction exists and the air cools off on expansion. so it wouldnt expand to 150 on the dot. so, instead of 100cm barrel, cut off some at the end

    hope im not wrong, but hope this could help

    0
    LiftAndLove
    LiftAndLove

    Reply 7 years ago on Introduction

    For everything that has a barrel, there is a 'perfect length'. Where its at the point where its most efficient. If the barrel is too long it will lose momentum because the gas or air is expanding, but too short and it wont expand enough.

    0
    bighead5454
    bighead5454

    Reply 8 years ago on Introduction

    Thanks for the amazing explanation (that wasn't sarcasm). It helps, and I think is is interesting how even the simplest types of math can be confusing with explanation (I first saw the math, and my jaw dropped, then looked more closely).

    0
    stevenh429
    stevenh429

    8 years ago on Introduction

    If you put a t-angle on the barrel with a length of pipe and add a locking tire chuck with an air-compressor...could you make this semi auto? I am going to make this (my 4th airgun, 3 are ball valvers :D)
    p.s. put marbles in the t-angle?

    0
    LiftAndLove
    LiftAndLove

    Reply 8 years ago on Introduction

    im going to use co2 instead, and then i can maybe make it semi, or possibly full even. make some marble mags.

    0
    LiftAndLove
    LiftAndLove

    Reply 7 years ago on Introduction

    I never remember reading this ible, and I was browsing the comments and found mine XD

    0
    AudioMaximus
    AudioMaximus

    8 years ago on Introduction

    I gotta say that building this as only a 12 year old is quite impressive. Im only 16 and I am on an FRC robotics team (electrical subteam co-leader!) so i work with these kinds of things a lot. nevertheless, i love the fact that younger kids are getting into this kind of stuff. Kudos to u, good sir.

    Nope, no license needed. At least in the US, I remember just walking into big 5 when I was twelve and buying a high power rifle scope, they didn't say a thing except "Thanks come again".

    0
    syco kid
    syco kid

    9 years ago on Introduction

    hey does it have to be a car tube valve or can it be a normal push bike tube valve

    0
    LiquidLightning
    LiquidLightning

    Reply 8 years ago on Introduction

    They are usually exactly the same, except that car valves are seperate pieces and bike valves are integral to the inner tube.

    0
    B00GYman
    B00GYman

    9 years ago on Introduction

    why is a sprinkerler valve better? what is the advantage?

    0
    Electroinnovation
    Electroinnovation

    Reply 9 years ago on Introduction

    Because the way they are designed makes it so it is a lot easier to release all of the air at once, where ball valves depend on user speed. The sprinkler valves allow more air out quicker thus resulting in a faster and more accurate shot. Also, its much less of a pain to squeeze a trigger than to rapidly twist a valve.

    0
    apples!!!!!
    apples!!!!!

    9 years ago on Introduction

    I watched that video.

    Do I bloody like apples? That pained me.

    ...on a more serious note, excellent build.

    0
    cloveless
    cloveless

    9 years ago on Introduction

    Excuse can somebody plzz tell me wat does "over under bit" mean on one of the pvc pipes when u hover your mouse over it???????!!!!!!!.............PLEASE REPLY I WANNA SHOOOT MANY MANY SQUIRELS

    0
    blugyblug
    blugyblug

    Reply 11 years ago on Introduction

    I know! Dimrain47 makes the best techno. My favorite is TT or maybe The Prototype..

    0
    ElvenChild
    ElvenChild

    Reply 9 years ago on Introduction

    I prefer the kriotube and the piano translations made by fans