Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 44 users online :: 4 registered, 0 hidden and 40 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

My Finished 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.
Sponsored 
  • Author
    Message

My Finished Hybrid

Unread postAuthor: mark.f » Sat Nov 25, 2006 5:38 pm

In my everlasting quest for honesty, ( :P ), I will tell you that I didn't re-write this at all. I just copied the post I made on SpudTech here. :oops:

------------------------------------------------------------------------------------

Mark's Gen. II Hybrid Gun
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
back-system.jpg

system-overview.jpg

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

After much talking and tweaking, I have my hybrid up and running.

The hybrid is a generation II variant. The chamber is 1-1/4 x 8" SCH-80 seamless steel pipe, and the fittings on the chamber can each hold at least 3,000 PSI. The mix tank is 2x12" SCH-40 and the two are separated by a ball valve.

I originally planned this thing to be a sort of rifle, and was going to make an onboard water pump and everything. But, after much though, effort, money, and experimentation, I just couldn't make it all compact enough. So, here she is:

I fill the whole thing to a 2x/2 atm mix, (more to mix the fuel than anything), and then open the hose into the mix tank to pressurize the ignition chamber even further. Then, the ball valve is closed and the chamber is ignited.

I use three layers of aluminum foil as a burst disk, and I shoot 13/32" steel ball bearings out a 3/8" type L copper pipe 36" long. I had to add a gasket to both the union and the hose adapter, because they were leaking like sieves.

The ignition is installed by drilling two small holes through a piece of 1/4" OD anodized aluminum rod, and then passing them through and epoxying into place. Then, the rod segment is attached to the chamber with a 1/4" OD compression adapter. The igniter is placed inside a small ring of 3/4" SCH-40 which is pressed into a 1" hole bored through the base.

The base is simply two pieces of 2x6 which have been glued together, sanded, charred, and then coated in polyurethane which is used for wood flooring. The spacers are all cut from 2x6 and the entire thing is strapped together with a 13' cargo ratchet strap which was cut to the correct length.

Farthest I've taken the launcher to was 60 PSI compression. This one fired with a pretty loud POP and I didn't quite figure out what the ball hit. I think it hit our oak tree, so I'll check there later. I have a small video at the bottom, (no sound, sorry), of a 40 PSI compression shot.

Now, here are all of the photos...

chamber-in.jpg
Where the ignition and mixing chambers connect
chamber-in.jpg (30.82 KiB) Viewed 292 times

disk.jpg
A view of a burst disk after being subjected to a 40 PSI compression shot

drain.jpg
The drain-cock used to drain and vent the mixing tank
drain.jpg (31.66 KiB) Viewed 292 times

far-away-full.jpg
A view of the entire shmeer

front-system.jpg
A view of the front of the system

hose-in.jpg
Where the garden hose connects to the mixing tank

igniter.jpg
The BBQ igniter

powering.jpg
Where I inject propane, inject air, and where the Oh crap! hose connects to the mixing tank

side-system.jpg
A view of the side of the system
side-system.jpg (39.25 KiB) Viewed 292 times


I'm pretty sure I left something out, so ask your questions!!!!

Thanks,
~Mark
  • 0

Last edited by mark.f on Sun Oct 20, 2013 3:08 pm, edited 4 times in total.
User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: rna_duelers » Sat Nov 25, 2006 5:52 pm

What speed does it shoot at?And maybe loose the yellow tape for something a little different.Makes the gun look a little bit of a throw together.
  • 0

Image
User avatar
rna_duelers
Major General
Major General
 
Posts: 1740
Joined: Mon Sep 26, 2005 7:07 am
Location: G-land Australia
Country: Australia (au)
Reputation: 1

Unread postAuthor: mark.f » Sat Nov 25, 2006 5:59 pm

I have no clue what speed it shoots at. Probably a little over ~600 fps, (a good pneumatic's speed).

As for the yellow stuff, that's not tape. :wink: It's cargo strapping for tying things like boats or ATV's to trailers. I chose it because I could use one continuous length and because it's easy to undo if I ever need to get to any of the components on the launcher.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: rna_duelers » Sat Nov 25, 2006 6:11 pm

Ahh fair enough reason.Could you access a chronygraph.Because I would like to see the sound barrier broken again.

Have you had any other problems apart from the union thinking it was a sieve?
  • 0

Image
User avatar
rna_duelers
Major General
Major General
 
Posts: 1740
Joined: Mon Sep 26, 2005 7:07 am
Location: G-land Australia
Country: Australia (au)
Reputation: 1

Unread postAuthor: mark.f » Sat Nov 25, 2006 6:16 pm

Nope. Just had to do a volume measurement twice because the first time I spilt water all over the place.

I could probably access a chronograph. One of my buddies is really into paintball, so he may have one. If not, my uncle is into handloading rifle rounds, so he may as well. Don't think I'll be breaking the speed of sound anytime soon, though, unless I buy a longer barrel.

GalFisk wants a night-time video to see muzzle flash, so I'll get that up in a little bit.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: Jedwards » Sat Nov 25, 2006 6:27 pm

What did you use for your air input? Is it from an ordinary push bike?
  • 0

User avatar
Jedwards
Specialist
Specialist
 
Posts: 42
Joined: Wed Nov 15, 2006 4:52 am
Reputation: 0

Unread postAuthor: mark.f » Sat Nov 25, 2006 7:15 pm

Yes, it's from a bike pump.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Sponsored

Sponsor
 


Unread postAuthor: schmanman » Sat Nov 25, 2006 7:22 pm

I like it. how much were all the fittings?
  • 0

Persistence is a measure of faith in yourself
User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: Scope » Sat Nov 25, 2006 7:25 pm

Most paintball chronographs wont go over 450 unless he has a really nice one
  • 0

User avatar
Scope
Captain
Captain
 
Posts: 342
Joined: Fri Nov 17, 2006 10:31 pm
Location: Ct
Reputation: 0

Unread postAuthor: mark.f » Sat Nov 25, 2006 7:31 pm

All the chamber and barrel fittings totalled $117.

Thanks for the info scope. I guess it'll be good old uncle mike then...
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: schmanman » Sat Nov 25, 2006 8:04 pm

oh, not too bad. kinda off topic, but what is the most you've spent on a gun? for me, it's $450-500 bucks, and rising.
  • 0

Persistence is a measure of faith in yourself
User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: PVC Arsenal 17 » Sat Nov 25, 2006 8:13 pm

So far the omega is getting close to $250.

My Grandparents are always willing to help fund my projects though! They enjoy watching me destroy things as much as I do!

I'm guessing the $500 was for the swat gun?
  • 0


PVC Arsenal 17
Major General
Major General
 
Posts: 1762
Joined: Mon Mar 27, 2006 4:18 pm
Location: United States
Reputation: 1

Unread postAuthor: SpudStuff » Sat Nov 25, 2006 8:19 pm

500 dollars! Man you got screwed. That would have cot me ~$75-100.
  • 0

User avatar
SpudStuff
Major General
Major General
 
Posts: 1410
Joined: Sat Dec 10, 2005 3:55 pm
Location: Cupertino, California
Reputation: 1

Unread postAuthor: Scope » Sat Nov 25, 2006 8:29 pm

Great job by the way man!!!!
  • 0

User avatar
Scope
Captain
Captain
 
Posts: 342
Joined: Fri Nov 17, 2006 10:31 pm
Location: Ct
Reputation: 0

Unread postAuthor: mark.f » Sat Nov 25, 2006 8:52 pm

Most I've spent is about 150$ for the Last Blast. This thing was cheaper due to the interchangeable meter input.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Next

Return to Hybrid Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'