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

1439119 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

842937 Views

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

Topics

C chamber material, spark gaps and misc. help needed

Last post by BigBang J
Replies: 6
by BigBang J » Fri Jul 09, 2010 2:39 pm

First post

I think I am going to scrap pretty much my whole gun that I have been working on. The combustion chamber was made of 1/8 thick bronze tubing 4 long...

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Is this a combustion or hybrid?

This is a hybrid, I am looking to have a pressure of 1000 psi after combustion.

6 Replies

3015 Views

Last post by BigBang J
Sat Jul 10, 2010 7:16 pm
Hybrid Valve design

Last post by SpudBlaster15
Replies: 12
by BigBang J » Thu Jul 08, 2010 7:52 pm

First post

What do you guys think of this?

It is basically a pop valve, the opening pressure depends on the strenght of the spring used, so it can be tweeked...

Last post

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

12 Replies

3660 Views

Last post by SpudBlaster15
Fri Jul 09, 2010 2:34 pm
New Guy with some Qs

Last post by BigBang J
Replies: 11
by BigBang J » Thu Jul 08, 2010 12:23 pm

First post

First of all hello everybody, I'm new here just signed on today.

I have been working on a hybrid on and off for probably 2 years now.
I am...

Last post

Sorry, Yeah I just realised I posted in the wrong spot.
I am finding my way around the site now .

No worries, we give newbies a break, once! :P...

11 Replies

2974 Views

Last post by BigBang J
Fri Jul 09, 2010 1:15 pm
Foreshadowing for the summer...

Last post by Killjoy
Replies: 11
by Killjoy » Tue Jul 06, 2010 1:53 am

First post

And after several failed (shorted out) ignition systems, I modified an existing ignition system idea and created mine which does not use a high...

Last post

Yeah the thought crossed my mind that I should support the elbows so as to prevent this kind of damage due to the resultant forces due to the...

11 Replies

4877 Views

Last post by Killjoy
Thu Jul 08, 2010 4:53 am
Hybrid QDV Design

Last post by saefroch
Replies: 12
by saefroch » Wed Jul 07, 2010 4:05 pm

First post

I've been thinking about how one could make a hybrid QDV... and I think this design will work, at least for low mixes. The spring will hamper the...

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Ramses, your original post is on the other thread. This is a new one, created for discussing the design.

I was thinking about the issue with the...

12 Replies

3289 Views

Last post by saefroch
Wed Jul 07, 2010 10:06 pm
Piston Design

Last post by Technician1002
Replies: 24
by Moonbogg » Wed May 26, 2010 8:52 pm
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Starting a thread about hybrid piston designs. I got a full time job with the people who fabricated my Venom, so there is a slight chance of future...

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Basically pressure builds in the pilot to ridiculously high levels, slowing the piston down. assuming no dead volume in the pilot (thinking of it as...
24 Replies

9494 Views

Last post by Technician1002
Thu Jun 17, 2010 4:02 pm
alcohol question

Last post by jimmy101
Replies: 6
by pat123 » Sat Jun 12, 2010 10:20 am

First post

Will liquid isopropyl alcohol evaporate to a combustible mix if poured into a closed container? also if more air was pumped in to the chamber to try...

Last post

double post 12345

6 Replies

4589 Views

Last post by jimmy101
Tue Jun 15, 2010 6:19 pm
Hybrid fueling chamber or chamber + meter?

Last post by MrCrowley
Replies: 10
by pat123 » Tue Jun 01, 2010 2:15 pm

First post

I've made hybrids before but I forgot if you count the meter as part of the chamber when you find the chamber volume since the gas in the meter will...

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Correct me if I'm wrong MrCrowley, but does not your meter still hold some MAPP after injection, along with maybe some air?
That's correct and...

10 Replies

6045 Views

Last post by MrCrowley
Tue Jun 01, 2010 8:23 pm
Two Scuba tanks....Ideas?

Last post by POLAND_SPUD
Replies: 10
by carpenoctem90hrs » Wed May 19, 2010 11:58 pm

First post

Hi all, I have been on this site quite a bit over the past couple of years but this is my first post.

I have been wanting to get into hybrid...

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yeah it will require a lot of air... but who said it will burn out a fridge compressor? get a big fan and it can run constantly.. it has been done...

10 Replies

3328 Views

Last post by POLAND_SPUD
Fri May 21, 2010 5:03 pm
thinking about going hybrid... need some help, Thanks!

Last post by chinnerz
Replies: 25
by chinnerz » Mon May 17, 2010 4:23 am
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I have decided to take damage to the next level and build a hybrid. but i am not fully sure of the whole concept and i'm not super confident in my...

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Ok, well i will have to keep thinking i think that will work up to 2x mix; but if i was making a rifle, which is alot bigger then a handgun, i would...
25 Replies

9707 Views

Last post by chinnerz
Thu May 20, 2010 4:34 pm
Hybrid ignition sources

Last post by irisher
Replies: 4
by Marffy » Mon Apr 19, 2010 11:18 pm

First post

I was thinking of making a hybrid but i don't know anything in detail about em'. I was wondering if this: would be a good ignition source or not? i...

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That igniter has 30,000 volts so as long you don't botch the spark plug you should be fine.

4 Replies

3094 Views

Last post by irisher
Wed May 19, 2010 6:14 pm
Formula for burst pressure of a flat plate or sheet.

Last post by Jeeperforlife
Replies: 7
by Jeeperforlife » Mon May 10, 2010 9:01 am

First post

I am looking for the formula for burst pressure of steel and aluminum flat plate. I am trying to figure some different burst disks and end plates for...

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I made a hybrid with a flat plate at one end of the chamber. I am not a math wizz nor am I an engineer, so I used a software program to calculate the...

7 Replies

7008 Views

Last post by Jeeperforlife
Tue May 11, 2010 10:02 pm
CpTn's Hybrid

Last post by theBOOM
Replies: 56
by CpTn_lAw » Tue Feb 02, 2010 10:01 am
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Well well well, let's see what we've got here...
My First truely working hybrid...

SPECS
Chamber = 39 cm of 1 steel
Ignition = 350kV stungun,...

Last post

Well, depends on what you call suppresed, but Daccel made a rather large silencer for his mini piston hybrid... Looked pretty badass IMO 8)

Edit....
56 Replies

21201 Views

Last post by theBOOM
Thu May 06, 2010 4:55 am
large diameter barrel

Last post by D_Hall
Replies: 7
by JDP12 » Wed Apr 28, 2010 2:57 pm

First post

I currently have a 3/4 copper barrel for my hybrid rifle, but would like one with diameter of 1.25 or 1.5 . While I could buy some copper, I really...

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Yea i know steel is cheap, but there is absolutely no way i am luggin around a 1.5 by 5 foot steel pipe on a shoulder fired launcher!! Lol.
Why not?...

7 Replies

3198 Views

Last post by D_Hall
Thu Apr 29, 2010 3:37 pm
Joe's Hybrid...

Last post by Marffy
Replies: 20
by deathbyDWV » Thu Mar 18, 2010 8:24 pm
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Hey guys. I've been really busy for a while now, mostly from homework, so I haven't been able to post this yet.

This is the hybrid that I've been...

Last post

very cool, I really like the layout of where you put everything.
20 Replies

12774 Views

Last post by Marffy
Sun Apr 25, 2010 12:14 pm
Propane questions...

Last post by saefroch
Replies: 9
by saefroch » Fri Apr 23, 2010 10:04 am

First post

I recently (a few days ago) started working on my pneumatic (soon-to-be-hybrid), and modded it so that it is no longer seals directly onto the barrel...

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oooooooooooooooo thanks. I've been wondering where I could find a good phase diagram for things like nitrogen, oxygen, carbon IV oxide, and propane.

9 Replies

2961 Views

Last post by saefroch
Sat Apr 24, 2010 11:24 am
Airsoft hybrid

Last post by DYI
Replies: 8
by Demon » Tue Apr 13, 2010 5:00 pm

First post

I havent really tough to any kind of diagram yet, but i think it could be cool to make a mini-hybrid, and i have one question :

If i have always the...

Last post

Personally, I don't see that it's sensible to have a standard that makes an atmospheric combustion anything other than 1X.

I think it quite...

8 Replies

4613 Views

Last post by DYI
Wed Apr 14, 2010 10:10 pm
Reaper's hybrid ALVAU

Last post by CpTn_lAw
Replies: 59
by reaper613 » Mon Oct 02, 2006 12:52 am
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advanced long-range vegtable artilery unit
Oxygen/actylene powered,3 steel chamber 2ft long, 2 single copper barrel 4ft long, spark plug/ continious...

Last post

Shock Diamonds at the exit?? What mix did you use this time? Have you put a burst disc on this baby? Still oxy-acetylene?

It's funny, it looks like...
59 Replies

28356 Views

Last post by CpTn_lAw
Fri Apr 09, 2010 2:26 am
Hydrotesting Vs. Shock Pressure

Last post by randompkguy
Replies: 16
by randompkguy » Fri Jan 29, 2010 12:39 am
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Is hydrotesting an accurate assumption of safety for hybrids since they produce a pressure shock, as opposed to releasing stored pressure like a...

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well this is good, obviously you don't assume deformation like you said, but i have some of this:
so i don't think i'll get too much deformation...
16 Replies

9340 Views

Last post by randompkguy
Thu Apr 08, 2010 7:51 pm
hybrid utilizing regular piston valve idea

Last post by ramses
Replies: 22
by POLAND_SPUD » Tue Apr 06, 2010 6:42 pm
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ok so here is the idea.. build a regular piston valve pneumatic, add a metering system to it, pilot valve for the main valve etc.
then use either of...

Last post

I have found that my piston hybrid leaves a very significant vacuum in the chamber after firing. This is because after the shot, the chamber is...
22 Replies

7364 Views

Last post by ramses
Wed Apr 07, 2010 9:45 pm
Gas Spring Hybrid Piston Valve

Last post by ramses
Replies: 4
by kjjohn » Fri Apr 02, 2010 12:15 am

First post

I have heard of people using gas springs for hybrid piston valves (snap valve type), but I was wondering how effective they are. I am talking about...

Last post

I was responding to DWV. Essentially, the piston in my valve is air tight. before fueling, I fill pilot area with air to a given pressure. That is my...

4 Replies

3003 Views

Last post by ramses
Sun Apr 04, 2010 9:52 am
Hybrid cannons

Last post by MrCrowley
Replies: 6
by graham » Sun Apr 04, 2010 12:15 am

First post

not more than firearm

Last post

Apparently my pneumatic I made when I was 13 sucks
maybe he was referring to the quality of pics not the gun itself ? :D
:D :D :D

When will it...

6 Replies

5075 Views

Last post by MrCrowley
Sun Apr 04, 2010 12:46 am
HEEELLLLP! (ignition troubles)

Last post by randompkguy
Replies: 16
by randompkguy » Sat Mar 27, 2010 3:54 pm
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So I began work on my first hybrid a few months ago. It's designed for 20x mixes, made of DOM steel, and has been hydrotested to 3500 psi....

Last post

I was planning on getting the two from mcmaster (f'in love that place :D despite the high prices) but i just got impatient, so i used what i had (I'm...
16 Replies

10368 Views

Last post by randompkguy
Sat Apr 03, 2010 2:50 am
Small stock mounted hybrid WIP.

Last post by SpudFarm
Replies: 19
by SpudFarm » Sat Mar 27, 2010 6:22 pm
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Hello, I just started messing around in my bucket of fittings and realized that I could make a small bore hybrid pretty simple with few parts. So I...

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Looks much better spudfarm!!

Glad you got it working reliably, now time to stock mount it

The stock mounting will have to wait a bit, I need a...
19 Replies

10701 Views

Last post by SpudFarm
Wed Mar 31, 2010 5:41 pm
Hybrid Cartridge (Possible Fail)

Last post by irisher
Replies: 51
by irisher » Tue Jan 19, 2010 7:10 pm
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After being inspired by JSR's combustion cartridge awhile back I decided to attempt my own with hybrid mixes. Ignition still needs work and metering...

Last post

I hope you don't just give up on is...

I intend to pretty it up when I have the time but, it is just not practical to shot a lot. Sound is also a...
51 Replies

16837 Views

Last post by irisher
Mon Mar 22, 2010 7:08 pm

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