Hybrid Cannons

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SpudFiles Potato Gun Commercial

Last post by quinn whitsitt
Posted in Combustion Cannons
Replies: 15
by PCGUY » Tue Oct 29, 2013 10:54 pm » in Combustion Cannons
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I've been wanting to get in some spud shooting action this fall before the weather got cold. I know it's been a while since I filmed anything for...

Last post

thank you for creating this website is there anything i can do to help
15 Replies

1112459 Views

Last post by quinn whitsitt
Fri Feb 09, 2024 2:38 pm
HYBRID FUELING 101

Last post by quinn whitsitt
Replies: 106
by SpudBlaster15 » Mon Mar 17, 2008 10:56 pm
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Part 1: Using traditional hybrid fuel meters correctly

Question: How many of those who have constructed hybrid launchers have used either an online...

Last post

thank you this is so helpfull!!
106 Replies

718872 Views

Last post by quinn whitsitt
Fri Mar 01, 2024 10:50 am

Topics

UPHL-38 (Updated 10/8/07)

Last post by SpudBlaster15
Replies: 19
by SpudBlaster15 » Sat Sep 15, 2007 1:58 am
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Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

Last post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...
19 Replies

13276 Views

Last post by SpudBlaster15
Sat Oct 13, 2007 12:56 pm
1st Hybrid

Last post by Novacastrian
Replies: 40
by Novacastrian » Sat Aug 11, 2007 9:05 pm
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My motto is keep it simple, as can be seen here.
The chamber was made from Stainless and Nylon, the barrel is copper.
It has been tested to 4x (max i...

Last post

Your ammo looks interesting to me. What is it? it looks like its aerodynamic and seems to shoot nicely according to your pics.

Look at this
40 Replies

15477 Views

Last post by Novacastrian
Tue Oct 09, 2007 3:07 am
hybrid basics

Last post by windshrike
Replies: 20
by Lentamentalisk » Sun Oct 07, 2007 6:03 pm
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Ok, to start it off, I have read through about the last 2 years of topics here, but may have missed a link or 2.

a few questions:
1) I have heard of...

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Psycix, DDT is when the rate of burn exceeds the speed of sound of the local gases(i.e. the ones produced by the burning). It DOES create a...
20 Replies

5965 Views

Last post by windshrike
Mon Oct 08, 2007 7:16 pm
The Build File.

Last post by psycix
Replies: 16
by rna_duelers » Sat Sep 01, 2007 9:50 pm
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I have been designing and comtemplating this hybrid build for a long time,I finally got off my lazy ass and started the build!

2nd Sep- These are...

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What colour do you think the chamber should be?I'm torn between leaving it the brushed aluminium or paint it matte black.

I vote for aluminium, but...
16 Replies

14433 Views

Last post by psycix
Mon Oct 08, 2007 8:33 am
QEVs.... on a hybrid?

Last post by Lentamentalisk
Replies: 21
by Fnord » Sat Oct 06, 2007 6:05 pm
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Has anyone ever tried this?
A qev is essentially a piston valve, and seeing how metal piston valves are such an effective alternative to a burst...

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i guess it wouldnt break, because the QEV doesnt have to hold pressure very high, only like 2-3bar, it just has to open when the pressure increases,...
21 Replies

7035 Views

Last post by Lentamentalisk
Sun Oct 07, 2007 6:07 pm
Hybrid Basics

Last post by Novacastrian
Replies: 2
by Quark » Thu Oct 04, 2007 12:09 am

First post

I'm new to the forums and i was wondering if someone could detail the components of a hybrid such as burst disks, propane meters, construction,...

Last post

Have a look at these sections, they are finished Hybrid then Hybrid under reconstruction. I claim to have the simplest Hybrid on these forums. (apart...

2 Replies

1966 Views

Last post by Novacastrian
Thu Oct 04, 2007 2:05 am
Hybrid first Attempt

Last post by Killjoy
Replies: 1
by ShowNoMercy » Tue Oct 02, 2007 8:07 pm

First post

Ok so I have been shifting from using big cannons to smaller more hand held, portable cannons. I decided I want to build a hybrid and to make it...

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Uh, what ar eyou plannign for your combustion chamber?
And unless your going crazy with the mixes it would probably be cheaper to buy a bycycle pump...

1 Replies

1683 Views

Last post by Killjoy
Tue Oct 02, 2007 10:32 pm
hybrid EXPLOSION!

Last post by thespeedycicada
Replies: 20
by thespeedycicada » Mon Oct 01, 2007 5:01 pm
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well here is the story.After conducting at least ten 3x in my hybrid at least seven times i was totally sure it was safe at 2x and it propbaly...

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i just found what those shards belonged to it was the ignitor holder so its not due to the thin pipe.
20 Replies

10755 Views

Last post by thespeedycicada
Tue Oct 02, 2007 5:55 pm
[French questions !]

Last post by CpTn_lAw
Replies: 30
by kornino » Sun Aug 26, 2007 10:05 am
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Hi American's friends. I'm a french Spudgun builder and I'm here to drag informations to my french friends.

In first, i don't speak very well...

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lol french is said to be difficult....but if i was able to learn to speak it as a mother language, everyone can! :P

Oh and by the way, i have a...
30 Replies

12801 Views

Last post by CpTn_lAw
Thu Sep 27, 2007 9:27 am
my mini 2x hybrid?

Last post by Novacastrian
Replies: 13
by thespeedycicada » Tue Sep 25, 2007 10:24 am

First post

well here is what i will be doing while im waiting to re-make the piston for my co-axial its all sch 40 and has a male adapter flush with one solvent...

Last post

This is simple Frankrede :D

13 Replies

7681 Views

Last post by Novacastrian
Thu Sep 27, 2007 6:22 am
Cam Locks.

Last post by rna_duelers
Replies: 8
by rna_duelers » Sun Sep 23, 2007 8:47 pm

First post

Now I have come to a stage in my Hybrid Build were I am wondering what to do.I could use a Cam Lock as a burst disc holder or use a Union,both are...

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I'll just test a lot of things,tracing papper included.But I do think my best bet is Aluminium foil or Soft Drink can Aluminium

8 Replies

3552 Views

Last post by rna_duelers
Wed Sep 26, 2007 7:58 pm
Hybrid Silencer

Last post by spanerman
Replies: 13
by spanerman » Tue Sep 25, 2007 6:58 am

First post

Will this work? it will be around 50cm long

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from my calculations, my optimim barrel length is 4.9m it is giong to be more like 3m so im guessing that the extra 30cm (12 inches) isnt going to...

13 Replies

5484 Views

Last post by spanerman
Wed Sep 26, 2007 1:16 am
okay, so let me get this meter thing straight

Last post by JDP12
Replies: 17
by JDP12 » Fri Sep 21, 2007 7:56 pm
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Alright, let me get how to use a hybrid meter straight. I'll take SB15s as an example. Would you put the propane into the meter, then once you have...

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Okay thanks noname
17 Replies

6366 Views

Last post by JDP12
Sun Sep 23, 2007 1:33 pm
stupid transistor question for a flyback ignition

Last post by jimmy101
Replies: 4
by JDP12 » Thu Sep 20, 2007 6:37 pm

First post

alright so i read the article in spudwiki about flybacks, then read the how-to guide that it linked to, okay fine.

here comes your idiotic question...

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so basically to create the spark, i would just flip the switch?

Yep, when the Trigger switch is closed sparks jump beteen the electrodes.

4 Replies

2692 Views

Last post by jimmy101
Sat Sep 22, 2007 12:07 pm
Stinger MkII

Last post by frankrede
Replies: 21
by frankrede » Sun Jul 29, 2007 10:44 pm
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First post

This is my much better designed hybrid and it is finished.
All I need to do now is set the meter.
It has a 650 ML chamber and has a modded spark plug...

Last post

Any luck yet?
I reckon ditch the metre and use a syringe :)
I already disassembled.
but I will take that into consideration for my next hybrid
21 Replies

10235 Views

Last post by frankrede
Fri Sep 21, 2007 10:50 pm
A question/theory about DDT

Last post by Rock
Replies: 28
by Fnord » Fri Aug 31, 2007 6:40 pm
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Alright, most experienced people on here agree that DDT=Death.

As we know, DDT occurs when a flame front starts burning fast enough to break the...

Last post

How do you know that ddt happens in a chamber. Explosion of the chamber may be a hint that it could have happened, but maybe it was for a completely...
28 Replies

8913 Views

Last post by Rock
Thu Sep 20, 2007 4:39 pm
hybrid mix-air amount question

Last post by JDP12
Replies: 4
by JDP12 » Thu Sep 20, 2007 11:10 am

First post

I get that for a 2x, 3x, et cetera you add 2x or whatever amount as much fuel as air. But I have a question. Say hybrid has two meters- one for air,...

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yea Pete, my question was if you needed to account for the air already in chamber, thanks, just wanted to check

4 Replies

2075 Views

Last post by JDP12
Thu Sep 20, 2007 4:07 pm
Painting The Inside.

Last post by psycix
Replies: 15
by rna_duelers » Wed Sep 19, 2007 3:58 am
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With my hybrid that is currently be constructed I have a few issues I need to figure out,and one of them is with the material being used.The chamber...

Last post

And it is a liquid oxygen bottle...DAHHHHHHH I'm such an idiot of course it's going to have a protective coating on the inside,why didn't I think of...
15 Replies

5288 Views

Last post by psycix
Thu Sep 20, 2007 8:29 am
Killjoy's FEAR

Last post by DYI
Replies: 27
by Killjoy » Wed Apr 25, 2007 1:46 am
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FEAR
I built this cannon for a science fair project because I bet my biology teacher I could break the speed of sound with a potato (I already knew...

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Sorry for kicking this up, but I was looking at the thread and saw Hotwired's GGDT numbers, so I input the parameters of this cannon and got exactly...
27 Replies

17364 Views

Last post by DYI
Sun Sep 16, 2007 8:19 am
Hybrid's Decided it doesnt like working

Last post by Novacastrian
Replies: 16
by spanerman » Tue Sep 11, 2007 5:22 am
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Hi, yesterday i was firing the hybrid at 2x mixes and 3x, i have shot at 4x before but not yesterday. Today i loaded up the car with the cannon and...

Last post

Happy shooting :D
16 Replies

6089 Views

Last post by Novacastrian
Fri Sep 14, 2007 6:32 pm
Mini Piston Hybrid

Last post by Fnord
Replies: 32
by PVC Arsenal 17 » Tue Jul 17, 2007 5:51 pm
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First off, I thought of this while I was falling asleep. So there's a chance I'm missing some things and this whole idea could in fact be entirely...

Last post

I doubt it. DDT at 2x would probably need 15 feet of run-up before it kicks in. That's just a logical guess though.

The biggest danger you'd be...
32 Replies

15027 Views

Last post by Fnord
Thu Sep 06, 2007 11:20 pm
Fuel question.

Last post by Dumbascii
Replies: 4
by hotknife ralphie » Tue Sep 04, 2007 6:36 am

First post

Just a random question ( I do not intend to build a hybrid as I have a major lack of knowledge in that field).
Also, I am sorry if this had been...

Last post

What would happen if you just added pure oxygen? My guess would be its a bad idea . . .
Good guess. There are two major issues with oxygen, but it...

4 Replies

2517 Views

Last post by Dumbascii
Wed Sep 05, 2007 9:34 am
Sonic boom>?

Last post by CannonBall
Replies: 26
by CannonBall » Thu Jul 26, 2007 3:24 pm
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Well ive read alot about super sonic speeds and my hybrid is operationel.
My chamber has 33 cubic inch
Barrel is 2 meters long 22mm wide
C:B is 07.1...

Last post

I finnaly got a better barrel.. and a 2 Cam lock
My 2 Cam lock gives nice flow! to a 28mm barrel
My C:B is 0.32: 1 chamber = 476 ML barrel 3 meter 28...
26 Replies

14460 Views

Last post by CannonBall
Tue Sep 04, 2007 4:18 pm
Design help with metal hybrid pweease...

Last post by mark.f
Replies: 6
by Icesoda » Thu Aug 30, 2007 10:32 am

First post

I'm slowly(Yet steadily) constructing a smallish handheld hybrid and I need some help and and a few pointers to keep it going...
The chamber is a...

Last post

How old is this axle? If it's got some impressive mileage on it, I'd maybe think a little harder on using it for a chamber. If you've ever driven...

6 Replies

2622 Views

Last post by mark.f
Mon Sep 03, 2007 8:10 am
Oxy/MAPP hybrid

Last post by noname
Replies: 16
by SpudBlaster15 » Sun Sep 02, 2007 2:25 pm
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First post

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras nec placerat erat. Vivamus dapibus egestas nunc, at eleifend neque. Suspendisse...

Last post

This thing looks fun! I'd make one myself, except I don't have the cash right now and I'd probably do something ridiculously stupid, without any kind...
16 Replies

8874 Views

Last post by noname
Sun Sep 02, 2007 10:15 pm

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