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

978850 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

652766 Views

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

Topics

[Pictures] Why a PVC hybrid is a bad idea

Last post by jackssmirkingrevenge
Replies: 26
by steven_main » Fri Oct 26, 2012 3:36 pm
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I thought for SURE that a PVC hybrid would be just fine if fired at a mere 2x.....Well I guess PVC is not indended to ever send projectiles to the...

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Then again, its that paranoia that helps keep you safe.

.. and stops you having fun.

#YOLO

:roll:
26 Replies

12463 Views

Last post by jackssmirkingrevenge
Sun Oct 28, 2012 12:13 pm
My hyrbid will NOT fire

Last post by steven_main
Replies: 10
by steven_main » Thu Oct 25, 2012 10:26 pm

First post

Im absolutelly 100% positive Im fueling this thing correctly. I built a VERY large PVC hybrid.
I have a slightly odd shaped chamber (lots of steps)...

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OUCHHHHH It was spark gap, ... without a barrel or projectile it fired perfectly, I thought it was so loud like a .45 going off next to my ear......

10 Replies

3917 Views

Last post by steven_main
Fri Oct 26, 2012 3:15 pm
Smallest possible size high power ingition module?

Last post by jrrdw
Replies: 6
by Gunner » Fri Oct 26, 2012 5:27 am

First post

So im wondering what is the smallest possible size yet powerful enough to ignite 30x mix? I know that I have to use max like 1mm spark gap and it...

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Honda quads normally use a small coil that makes around 18K volts, but require a 12VDC power supply.

From Spudfiles sponsor a better option:

For...

6 Replies

3436 Views

Last post by jrrdw
Fri Oct 26, 2012 10:31 am
plotting the chaos cannon

Last post by chaos cannon
Replies: 8
by chaos cannon » Wed Aug 29, 2012 5:58 pm

First post

Hello all, names chaos im currently planning a hybrid and would like to use yall as a sounding board. I plan on making this cannon out of 6061...

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Ok well that last plans been scraped. i now am in the beginning stages of implementing a new plan that will be insane :twisted: :twisted:. while at...

8 Replies

3520 Views

Last post by chaos cannon
Mon Oct 15, 2012 7:51 pm
My Hybrid!

Last post by wyz2285
Replies: 142
by wyz2285 » Sun Mar 25, 2012 12:05 pm
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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:...

Last post

Yeah, the smoke it's actually very cool. It makes my hybrid looks like a gun powder cannon :lol:
142 Replies

43021 Views

Last post by wyz2285
Sun Oct 14, 2012 11:51 am
Midget Ghybrid!!

Last post by jackssmirkingrevenge
Replies: 11
by Scope » Mon Nov 27, 2006 9:38 pm

First post

Well here it is!! I thought I was the first person to make a mini hybrid but killa beat me to it!! O well. I posted this because its the cheapest...

Last post

how much exactly is one propane injection?

Have a look here for some tips on simply and cheaply fuelling small hybrids:

As to this old thread,...

11 Replies

7193 Views

Last post by jackssmirkingrevenge
Fri Oct 05, 2012 12:54 am
Quicker burst disc loading

Last post by CS
Replies: 3
by CS » Wed Sep 12, 2012 1:26 pm

First post

Looking for ideas that improve the speed of loading a burst disc. The main issue is locking the joint under compression so that it will not come...

Last post

The picture shows what I'm thinking of. Problem being that all six chambers have to be precisely aligned or not all the joints will seal. If it did...

3 Replies

2236 Views

Last post by CS
Thu Sep 13, 2012 5:53 pm
Rust-proof your hybrid chambers

Last post by MrCrowley
Replies: 8
by Fnord » Sun Sep 09, 2012 9:19 am

First post

Title should say enough.

This is mine after five years.
Pitting is significant. This is more of a concern when the threads are taken into account;...

Last post

I left my piston hybrid outside overnight once and it rusted more then than it had in total the previous 18 months. After that, I gave it a spray of...

8 Replies

3702 Views

Last post by MrCrowley
Sun Sep 09, 2012 5:10 pm
Double barrelled 3x hybrid

Last post by PotatoEnemy17
Replies: 14
by spudamine » Thu Jul 19, 2012 2:08 pm

First post

This is yet another of my completely un-planned cannons, seeing a pack of these on the shelf:

I was intrigued and couldn't resist the dual...

Last post

Awesome Cannon, Kinda reminds me of when I built a cannon with water bottles - oh wait that one turned in to a bomb, oops! It looks pretty ergoomic :P

14 Replies

10146 Views

Last post by PotatoEnemy17
Tue Sep 04, 2012 10:19 am
Piston Valve Hybrid

Last post by Jolly Roger
Replies: 13
by Jolly Roger » Sun Aug 26, 2012 2:00 am

First post

Hey all,

It's been a while since my last post, but I'm still bent on building my piston valve hybrid so I'm looking for some advice or tips on how I...

Last post

Yeah I gotcha. Fairly specialised design. Had much luck with it?

I've been toying with the idea of a pressure release valve to act as my burst disk...

13 Replies

6751 Views

Last post by Jolly Roger
Wed Aug 29, 2012 3:47 am
Sealing chamber/barrel revolving launcher

Last post by Brian the brain
Replies: 10
by CS » Thu Aug 16, 2012 8:42 pm

First post

I'm looking for ideas on how to seal the chamber and barrel on a revolving launcher.

Idea #1:
Spring load the chamber against the barrel with a...

Last post

The gap should be as small as possible.

Then:
take two pipes , one as an outer sleeve for the barrel.
On the other side ( cilinder?) you use the...

10 Replies

5854 Views

Last post by Brian the brain
Wed Aug 22, 2012 3:53 pm
Pressurized Pilot Release Valve

Last post by Fnord
Replies: 1
by saefroch » Sat Jun 30, 2012 9:06 pm

First post

So... I think I'm finally turning back to working on my hybrid. I'm only missing a few critical components, one being a release valve for the...

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This is old, but since no one has asked yet, I'm doing it;

I understand the operating principle you are trying to apply here, but I'd like to see...

1 Replies

1612 Views

Last post by Fnord
Thu Aug 09, 2012 5:31 pm
hybrid cartridge protoype without burst disk

Last post by jackssmirkingrevenge
Replies: 591
by jackssmirkingrevenge » Wed Oct 21, 2009 12:28 pm
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I was intending to make an experimental hybrid cartridge as discussed here but hit upon a snag. My initial thoughts were to have an ignitor contact...

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Been experimenting with this, with some disappointing results for 0.22 pellets. Historically the issue was that either that the o-ring couldn't hold...
591 Replies

190698 Views

Last post by jackssmirkingrevenge
Mon Jul 02, 2012 3:32 pm
Hydrogen/Oxygen Mixes

Last post by shardbearer
Replies: 3
by shardbearer » Sat Jun 16, 2012 3:52 am

First post

I'm thinking of making an electrolysis rig to make Hydrogen and Oxygen as fuel, preferably separately so I can do different ratios. So, what would...

Last post

After lots of reading, I've decided to go the normal route of butane/propane and air. It seems that at normal mixes that would be more powerful and...

3 Replies

3078 Views

Last post by shardbearer
Thu Jun 28, 2012 2:15 pm
Modified QDV for hybrid use

Last post by SpudFarm
Replies: 27
by Fnord » Fri Jan 07, 2011 1:00 pm
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Since I haven't been contributing anything but sarcasm lately I figured I might as well post one of my non-classified designs to see if anyone can...

Last post

Bump

I do like your design Fnord, looks like it will work and perform as a dream..
The design is also pretty simple and could easily be made by most...
27 Replies

12579 Views

Last post by SpudFarm
Tue Jun 26, 2012 6:39 am
Hybrid ThorJack

Last post by ramses
Replies: 907
by Petitlu » Fri Mar 09, 2012 8:07 am
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First post

This is my first hybrid, it is a lot advanced, all calculations are made, meter room and finished ignition systems also finished, I have to make the...

Last post

Why cut the nail head?

... because it stops full penetration ;) also, it shifts the centre of gravity forward meaning the fins don't have to be so...
907 Replies

234359 Views

Last post by ramses
Mon Jun 25, 2012 4:48 pm
small, high power hybrid

Last post by DYI
Replies: 15
by Raybateman » Sun May 06, 2012 1:10 pm
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I was thinking of creating a small, all metal hybrid spud gun. Im no expert with hybrids and this would be my first one. The plans are hardly...

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HGDT assumes standard air (roughly 1:4 oxygen/nitrogen) as the oxidizer / buffer. There's not really any way to simulate anything other than air/fuel...
15 Replies

7094 Views

Last post by DYI
Fri Jun 15, 2012 10:02 am
Will this work for fueling.

Last post by boyce123
Replies: 4
by 8tonsemi » Mon Jun 04, 2012 9:12 am

First post

I was thinking this morning and this new type of metering came to mind that I haven't personally read before. I goes like this. you use a 96:4 ratio...

Last post

sorry for that, i realized that my logic was reversed after i posted the comment...

4 Replies

2213 Views

Last post by boyce123
Thu Jun 07, 2012 9:43 pm
Manometric metering

Last post by 8tonsemi
Replies: 20
by 8tonsemi » Wed May 02, 2012 4:19 pm
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Can someone help me more greatly understand manometric metering for a hybrid.

Last post

I don't actually build hybrid's yet I'm just gathering information so when I decide to try to make one I'll be prepared.
20 Replies

7076 Views

Last post by 8tonsemi
Thu Jun 07, 2012 1:21 pm
New Hybrid design

Last post by jackssmirkingrevenge
Replies: 22
by boyce123 » Thu May 31, 2012 3:16 pm
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I am new to hybrids, and i havn't yet explored all of the posts and forums, but i havn't seen this design of a piston hybrid yet.

The design is...

Last post

ah... it is schedual 80 (should hold up to around 700 psi), seems as if the epoxy should have held up...

The breech was unsupported and cast into a...
22 Replies

8130 Views

Last post by jackssmirkingrevenge
Wed Jun 06, 2012 11:39 pm
New hybrid (w.i.p.)

Last post by MrCrowley
Replies: 84
by Labtecpower » Thu Dec 22, 2011 5:20 pm
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I finished the combustion chamber of my new hybrid;

25 mm ID, 2.5 mm wall thickness. the chamber has a length of 20 cm, so I have plenty of...

Last post

I think so too. He's dug himself in too deep to climb out without anyone noticing :wink:

@Labtecpower,
Nice penetration at only 10x with a small...
84 Replies

27711 Views

Last post by MrCrowley
Sun May 20, 2012 10:24 pm
Fueling with a syringe?

Last post by MrCrowley
Replies: 2
by 8tonsemi » Mon May 07, 2012 5:31 pm

First post

how do you get your fuel into a mini hybrid with a syringe.

Last post

That's your own damn topic. Read JSR's post.

LOCKED.

Do this again (for a fourth time) and I'll request that your post privileges be temporarily...

2 Replies

2196 Views

Last post by MrCrowley
Mon May 07, 2012 10:10 pm
Help understanding manometric metering

Last post by MrCrowley
Replies: 2
by 8tonsemi » Mon May 07, 2012 5:23 pm

First post

Can someone explain to me what manometric metering is. Or link me to a post about manometric metering :lol:

Last post

LOCKED! Search the forums or reply in your old thread.

Don't do this again.

2 Replies

1603 Views

Last post by MrCrowley
Mon May 07, 2012 10:08 pm
Burnign speed of hybrid gas mix ?

Last post by mark.f
Replies: 9
by matti » Thu May 03, 2012 1:37 pm

First post

Hi, is there a way to calculate the explosion speed of hybrid gas mixtures, for a given mix number (10x or like 4X mix).. I hope it changes depending...

Last post

Looks like your going to have to do some actual research here :shock:

Perish the thought...

Good to see you're back at things DYI. :wink:

9 Replies

3503 Views

Last post by mark.f
Sat May 05, 2012 8:19 am
Hybrid without bursting disc

Last post by Petitlu
Replies: 15
by Petitlu » Tue May 01, 2012 4:27 pm
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To remove the rupture disc in a hybrid I thought this:
A little on the principle of Withoutloss.
Piston spring green is stiff enough to hold the...

Last post

pop-pop-pop I need to revisit that idea now that I have machine tools...

Yes!
Plus it was a good idea :D
15 Replies

11984 Views

Last post by Petitlu
Wed May 02, 2012 2:59 am

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