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My Hybrid!

Built a hybrid cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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My Hybrid!

Unread postAuthor: wyz2285 » Sun Mar 25, 2012 12:05 pm

Well, I´m in holidays now, so damages must be made :D
So, I thought it´s about the time for me to go hybrid :) , as I got 2 tazers.
Specifications:
Chamber: 1" 30cm iron(I think) pipe.
Burst disc: soda can.
Mix: don´t know how high I will reach, but as long as the spark happens :wink:
Fuel: Butane.
Barrel: 1/2 steel tube.
About the gun, I must say there are nothing special on it, the only part that I really spent time on is the charging plug, machined from a aluminium rod on my drill press.
Video on Tuesday/Wednesday
Edit: video at page 7 and 10
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hybrid5.jpg
hybrid6.jpg
Last edited by wyz2285 on Fri Oct 19, 2012 1:39 pm, edited 2 times in total.
CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: SpudBlaster15 » Sun Mar 25, 2012 12:22 pm

Nicely done. How long is the barrel?
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Unread postAuthor: wyz2285 » Sun Mar 25, 2012 12:34 pm

I´m thinking about 1m, should be enough :)
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: wyz2285 » Mon Mar 26, 2012 9:08 am

Mix question: The chamber volume is 210 ml, I´m using butane so it´s 3.5% of the chamber volume per mix right? Just want to make sure before I do anything stupid.
I will syring meter the fuel and inject from the muzzle.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Mon Mar 26, 2012 9:56 am

HAHA! Another one joins the dark side :D

wyz2285 wrote:Mix question: The chamber volume is 210 ml, I´m using butane so it´s 3.5% of the chamber volume per mix right? Just want to make sure before I do anything stupid.
I will syring meter the fuel and inject from the muzzle.


Technically for butane only it's 3.2%, so you need to inject 6.7mL per mix number. Check out the syringe injection thread, I explain it in detail.
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Unread postAuthor: wyz2285 » Mon Mar 26, 2012 11:39 am

I read it, sounds simple.
How did you find out the pumps dead space? I will use a compressor to charge it, how am I going to do that :shock: and why? If the gauge from the pump/compressor reachs the correct pressure that means that chamber has the same pressure as well.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: CpTn_lAw » Mon Mar 26, 2012 11:51 am

You have to know approximately for low mixes. You just check your air line Inner diameter, and the length of it. pi*r²*L and voilà... volume.

Nice hybrid by the way wyz!
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Unread postAuthor: jackssmirkingrevenge » Mon Mar 26, 2012 12:39 pm

wyz2285 wrote:I read it, sounds simple.
How did you find out the pumps dead space? I will use a compressor to charge it, how am I going to do that :shock:


Say you're using a blowgun style filler, the dead volume is everything past the blowgun valve. Want to know the exact volume? Fill it with water ;) That's how I did it.

and why? If the gauge from the pump/compressor reachs the correct pressure that means that chamber has the same pressure as well.


In the same way that air goes in the chamber, fuel is going to flow out of the chamber and into this dead volume. If you don't take this into account, your mix will be off.
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Unread postAuthor: wyz2285 » Mon Mar 26, 2012 1:43 pm

In the same way that air goes in the chamber, fuel is going to flow out of the chamber and into this dead volume. If you don't take this into account, your mix will be off.

Hum, or a check valve between the fill port and compressor :)
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Mon Mar 26, 2012 1:46 pm

As long as you take into account the cracking pressure of the valve and add this to the total pressure required :)
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Unread postAuthor: Gun Freak » Mon Mar 26, 2012 2:03 pm

How dare you!
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Unread postAuthor: wyz2285 » Mon Mar 26, 2012 2:10 pm

:lol: :lol: :lol: I was waiting for your comment Gun Freak :lol: :lol:
Don´t worry, this is my last (big bore) hybrid :wink:
Edit: No! This is only the beginning :twisted:
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Last edited by wyz2285 on Mon Apr 16, 2012 2:25 pm, edited 1 time in total.
CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: wyz2285 » Thu Mar 29, 2012 3:04 pm

Video :D 5x
More to come.
Hybrid it´s the best thing ever!!!!! :twisted: :twisted:
[youtube]http://www.youtube.com/watch?v=TYigtioG12U[/youtube]
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: mobile chernobyl » Thu Mar 29, 2012 4:23 pm

Labcoats... and a bench that wouldn't be sanitary to eat off of even if there was a place mat over all of it lol. Nice.
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 29, 2012 4:29 pm

mobile chernobyl wrote:Labcoats...


:D

Excellent! Mad science at its best :)

Hybrid it´s the best thing ever!!!!!


Heard that Gun Freak ;)
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