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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First post

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

1174322 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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First post

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

752609 Views

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

Topics

Piston Hybrid Questions, O Ring/Design

Last post by jackssmirkingrevenge
Replies: 2
by WizardNoodle » Fri Aug 18, 2017 12:48 pm

First post

Hello everyone, I haven't posted in a while because I took a break from designing the cannon, but now I have some questions regarding my hope to make...

Last post

The temperature you are seeing in HGDT is very short lived

This is the important point, the temperature and pressure spike in a hybrid is very...

2 Replies

7264 Views

Last post by jackssmirkingrevenge
Sat Aug 19, 2017 9:20 am
Automatic Piston Hybrid Cannon Design

Last post by hectmarr
Replies: 27
by lordBenio » Thu May 28, 2015 10:51 am
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First post

Hello everyone!

I have started on a automatic piston hybrid cannon design that I have been mauling over for sometime now.

Some of my design...

Last post

This is an idea to compress the mix into a hybrid I was thinking about.
It would work as follows.

In the A position of the diagram:

The...
27 Replies

37805 Views

Last post by hectmarr
Mon Aug 07, 2017 8:22 pm
Archimedes' cannon

Last post by jankokes
Replies: 6
by jankokes » Thu May 18, 2017 8:57 am

First post

Hello,

I didn't want my (re)discovery and adjustment to be forgotten, so I publish it here and now:
ArchimedovoDelo.png...

Last post

Consider a lever instead of a pull pin to release the mechanism, as the friction from the force of the pressurized medium will make it difficult to...

6 Replies

6860 Views

Last post by jankokes
Mon May 22, 2017 4:14 am
Fueling a very high mix hybrid

Last post by DYI
Replies: 17
by SpudFarm » Thu Feb 09, 2017 6:14 pm
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Hello again Spudfiles, I don't know if any of you can remember me as I have not been active on these forums for years! However I am lurking from time...

Last post

One possible solution is to use a wort pump and a heating element, and pump warm water through axial channels in the chamber. This is obviously a bit...
17 Replies

23396 Views

Last post by DYI
Mon May 01, 2017 9:46 pm
Milk Jug Failure Modes

Last post by jackssmirkingrevenge
Replies: 2
by auxiliary » Mon Apr 10, 2017 7:01 pm

First post

I was playing around with my hybrid, trying to fine tune the optimum mix pressure for my volumetric meter setup and I noticed I got three failure...

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Consider going for a material that yields in a more abrupt fashion

Hear hear, you want something that breaks as opposed to tearing. My favorite...

2 Replies

4630 Views

Last post by jackssmirkingrevenge
Tue Apr 18, 2017 7:11 pm
A more accurate Volumetric Metering Equation (check my work)

Last post by mark.f
Replies: 15
by auxiliary » Thu Mar 16, 2017 7:06 pm
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Hi Hybrid Spudders,

I have been dissatisfied with the current approaches to calculating the correct amount of fuel for hybrids using volumetric...

Last post

That looks a lot closer to what I have. I'll have to do the math to compare them later on.
15 Replies

16579 Views

Last post by mark.f
Mon Apr 10, 2017 3:24 am
Links

Last post by johncena
Replies: 4
by johncena » Thu Jan 26, 2017 8:26 pm

First post

Does anybody want to direct me to a couple links on how to build a piston hybrid? I've built several combustion and pneumatic cannons.

Last post

Thank You! Now I understand it.

4 Replies

6882 Views

Last post by johncena
Mon Jan 30, 2017 1:41 pm
Update: Golf Ball Piston-Valved Hybrid (LRCH-200)

Last post by Binder17
Replies: 42
by Binder17 » Tue Nov 04, 2014 11:53 am
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I never thought I would find myself in this discussion, but here I am. Life has been busy, and I have only been able to turn out one project a year...

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Delayed Again. For those who don't know, the reason testing is so complicated is because I have to go off site into another state where there is a...
42 Replies

39233 Views

Last post by Binder17
Tue Dec 06, 2016 10:31 am
Liquid/Solid fuel Cannon sketch

Last post by Gip-Gip

by Gip-Gip » Wed Nov 09, 2016 10:10 pm

I'm thinking of making a liquid/solid fuel cannon sometime in the future, and I'm sharing my current sketch with the community to get feedback. The...

0 Replies

11309 Views

Last post by Gip-Gip
Wed Nov 09, 2016 10:10 pm
A question about pilot pressure.

Last post by hectmarr
Replies: 14
by hectmarr » Thu Oct 27, 2016 10:20 am

First post

I would just like to know what percentage of the theoretical combustion pressure in the combustion chamber, in a hybrid, you have to calibrate the...

Last post

Gaseq will calculate both the pressure and temperature of the combustion mix. The flame temp for propane in air is about 2000C.

Gay-Lussac's and...

14 Replies

22039 Views

Last post by hectmarr
Wed Nov 02, 2016 2:11 pm
Just 'cause I'm a jerk...

Last post by matti
Replies: 2
by D_Hall » Fri Sep 02, 2016 12:52 am

First post

...I thought I would mention: 35 pounds to 1940 ft/s.

Last post

Nice job, but we are waiting for video :D

2 Replies

4001 Views

Last post by matti
Fri Sep 02, 2016 12:03 pm
Digital pressure gage for hybrid fueling

Last post by matti
Replies: 1
by finland66 » Sun Jun 19, 2016 11:38 am

First post

Hello,

Does anyone any experience with (chinese) digital pressure gages for hybrid fueling?
I would be using oxygen/propane mixture with highest...

Last post

Larda with HyGaC20 and DYI with clgg project, but those were good quality test meters. Can't help more..

1 Replies

3615 Views

Last post by matti
Sun Jun 19, 2016 1:46 pm
How necessary are burst disks at lower mixes?

Last post by matti
Replies: 1
by Juggernaut12121 » Wed May 11, 2016 4:49 pm

First post

Using oxygen rather than air with propane (or any other fuel) speeds up the rate of combustion, and the increased rate of combustion should make...

Last post

There are many things to consider here, but I just say that atmospheric mixes of propane and oxygen, or even oxygen and acetylene won't go much...

1 Replies

3922 Views

Last post by matti
Thu May 12, 2016 1:44 pm
CO² extinguisher hybrid

Last post by dwarak17
Replies: 8
by Brice » Mon May 05, 2014 12:21 pm

First post

This is my first hybrid, built during the holidays because I had too much free time, the chamber is an old 3,5L fire extinguisher (supposedly strong...

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Carbon dioxide extinguishes work by displacing oxygen, or taking away the oxygen element of the fire triangle. The carbon dioxide is also very cold...

8 Replies

10302 Views

Last post by dwarak17
Thu May 12, 2016 1:47 am
ignition issues on a hybrid project

Last post by jackssmirkingrevenge
Replies: 6
by taaafit » Thu Dec 03, 2015 6:40 am

First post

Hi everyone!
I'm attempting to build my first hybrid but i'm going into some ignition troubles...

Firstly the design:
The canon will be a mix of a...

Last post

:roll:

6 Replies

7835 Views

Last post by jackssmirkingrevenge
Tue Mar 29, 2016 9:25 pm
suggestions on fuel source and mixtures

Last post by jackssmirkingrevenge
Replies: 5
by Jlowe » Wed Mar 16, 2016 9:19 pm

First post

I saw a you tube video of (bobs golf ball cannon ) and couldn't live without making one . He used oxy and act to fuel his . I desire a more...

Last post

Consider using a large syringe to meter butane or propane:

5 Replies

16160 Views

Last post by jackssmirkingrevenge
Tue Mar 22, 2016 8:01 am
Propane Sensor Fuel Metering

Last post by ToasT
Replies: 3
by MrCrowley » Tue Jan 12, 2016 3:50 am

First post

Hey guys, long time no see! Hope the New Year is treating you all well.

I've become slightly addicted to YouTuber AvE and his videos have spurred...

Last post

I had thought about making an electronic fuelling device, using a pressure transducer and a meter pipe. Could be further automated with solenoid...

3 Replies

13816 Views

Last post by ToasT
Sat Jan 16, 2016 5:40 am
hybrid cannon shells

Last post by jackssmirkingrevenge
Replies: 4
by Crimson » Mon Dec 28, 2015 4:15 pm

First post

First, let me state that this is my first project with any cannon, maybe a tad ambitious, but I'm optimistic about it.
The plan for this is to be...

Last post

Some threads that might be of interest:

4 Replies

6658 Views

Last post by jackssmirkingrevenge
Sun Jan 10, 2016 9:41 am
Possible Breech Load Hybrid. Quick change burst discs?

Last post by Fnord
Replies: 6
by Tango71 » Mon Feb 09, 2015 2:43 pm

First post

This is in relation to my previous post in the combustion cannon discussion. To sum it up, I have to build a cannon for a tank, yes you read that...

Last post

I think it is just a matter of selection the high quality piston that will work awesome. I know a lot of users there can recommend us the best...

6 Replies

10769 Views

Last post by Fnord
Sat Aug 08, 2015 2:38 pm
Extreme Spudder

Last post by jrrdw
Replies: 12
by burning_water » Mon Jul 20, 2015 2:30 am

First post

G'day everyone,
I am building my first hybrid, its made out of 90 mm ID x 8 mm wall steel pipe.
I want to use a piston valve, I've already had one...

Last post

It was either MrCrowley or Spudblaster15 had a lot of trouble with threaded rod. Search their hybirds follow the fix so you don't tear up what you've...

12 Replies

10507 Views

Last post by jrrdw
Thu Jul 23, 2015 4:18 pm
Stage1 - 120X CLGG

Last post by equusvenustas
Replies: 45
by DYI » Fri Aug 29, 2014 11:53 pm
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Stage1 is my first foray into the development of a combustion light gas gun, and has several design features not seen before on Spudfiles. First, the...

Last post

I think the easiest to do is to build a light tight enclosure to contain the chrony something like this

I have read a little about the risks of...
45 Replies

59913 Views

Last post by equusvenustas
Wed Jul 08, 2015 3:39 pm
A post for DYI

Last post by equusvenustas
Replies: 7
by equusvenustas » Sat Jul 04, 2015 4:23 am

First post

Or anyone intrested in electrothermal launchers.

As i said i really appreciate that you have interest in my ETG. It is very ghetto, reason i didnt...

Last post

Your pre- machine tools ETG certainly works better than mine did! The craters have different aspect ratios because you were using heavier BBs, but...

7 Replies

16390 Views

Last post by equusvenustas
Wed Jul 08, 2015 5:30 am
The Party Popper

Last post by Buntyspudbaby
Replies: 4
by Buntyspudbaby » Wed May 27, 2015 10:36 pm

First post

Greetings.

The Party Popper, a burst disc hybrid:

50cc chamber, Malleable galvanised iron fittings. The T is 3/4 .
3/4 union, unmodified. A rubber...

Last post

EDIT: I had some trouble with this thing, it wasn't igniting mixes. I adjusted the spark gap and it has done the trick but the in the process of...

4 Replies

7691 Views

Last post by Buntyspudbaby
Sun May 31, 2015 9:33 pm
New idea for making piston

Last post by Gleedaniel13
Replies: 4
by Scrambles622467 » Wed Aug 20, 2014 5:08 pm

First post

Has anybody thought about making a piston out of molten aluminum?

Last post

I will make a new one out of my idea. I think that would be more interesting if it is really unique. :)

4 Replies

5726 Views

Last post by Gleedaniel13
Wed Apr 29, 2015 3:38 am
Spudchukker III - Piston Hybrid

Last post by MrCrowley
Replies: 32
by sudpuzzer » Mon Oct 21, 2013 12:29 am
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Spudchukker III - Venting Piston Hybrid

Hey guys,

I finally got around to making the showcase post for my hybrid since I feel it has...

Last post

I think mine is closer to 1kg :O

So you should be fine :D
32 Replies

46060 Views

Last post by MrCrowley
Tue Apr 07, 2015 2:38 pm

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