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Doublebarreled Whippet.

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Doublebarreled Whippet.

Unread postAuthor: Brian the brain » Thu Mar 07, 2013 3:13 pm

:D

I apologise for suggesting to give up on this build..

It's sorta finished now and works quite well..

I put some functional hammers on there, with internal springs.
No triggers, sorry, just a triggerguard to complete the look.
My son loves it!
Just pull back one or two hammers and let go!
BANG!
:D
I'll make my own version wich I will plan in advance later.
This was basically just thrown together as I went along.I hadn't given much thought on how to place the valve and triggersystem.
Still came out nice though.



I'll be adding a safety pop-off tomorrow so my kid won't push it too far and I plan on putting a small pump inbetween the shoulderstock.


The breechseal needs to be smoothened out and the hinge for the breakaction is to be glued in place...but that won't change the overall look and function so I guess it's ready:
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: wyz2285 » Thu Mar 07, 2013 5:09 pm

OMG OMG :shock:
That's what I wanted to build but too lazy and busy to build two hammer valves.
I absolutely love it! Just looks like the old school double barrel shotgun from metro2033
How are the breeches locked?
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 07, 2013 5:19 pm

Sweet! Shooting vids?
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Unread postAuthor: Brian the brain » Fri Mar 08, 2013 6:34 am

OMG OMG
That's what I wanted to build but too lazy and busy to build two hammer valves.
I absolutely love it! Just looks like the old school double barrel shotgun from metro2033
How are the breeches locked?


OMG..it's what I wanted to build since I joined... :D
A full throttle version that is.
The breeches are friction fit rubber to rubber, but a bit rough now.
I'll work on improving it.
The black block underneath the barrel is a snap-on brace wich locks the barrels in place.

Sweet! Shooting vids?

Lost my youtube channel including all vids a couple of weeks ago.
I closed some Google service and according to them the two were interconnected.
I had no idea.i contacted them but they can't recover it.

I'll start a new one sometime in the next few days.

I was happy the constant stream of e-mails had stopped-no more spudgun related questions by total newbs..or critique based on what people had heard their uncle or sister say after they had once read something vaguely scientific ...like...on the back of a soupcan....

PCP? You mean PVC!! You will kill yourself! " how much do you think this volume of psi valve will explode cork in your face?!?!?"

Sigh...
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: wyz2285 » Fri Mar 08, 2013 7:00 am

The breeches are friction fit rubber to rubber, but a bit rough now. I'll work on improving it. The black block underneath the barrel is a snap-on brace wich locks the barrels in place.

Friction fit? Definitely not good for high pressure, I had many problems keeping the breech of my single barrel shotgun shut at 10 bar.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Brian the brain » Sat Mar 09, 2013 7:56 am

You might have missed the fact that this is meant for nerfdarts:

I'll be adding a safety pop-off tomorrow so my kid won't push it too far


It's definately not airtight...but the darts are too fast anyway.

In a metal version, with a metal hinge, I could get an airtaight metal to metal seal.
I've made it before.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Brian the brain » Sat Mar 09, 2013 5:15 pm

I apologise for doublebarr..posting..

Made a 100% airtight breechseal.
I heated a section of PVC pipe and flattened it out.

The rubber hose sections are pressed over two inserts wich sit firmly in the valve.The flat PVC is glued to the rubbers and two holes transfer the pressure to the nerfs.
The rubber gives the PVC section some flex.

When the barrels come down they press the PVC sheet harder onto the rubber and it's all nice and airtight.
The PVC to PVC seal makes opening and closing the barrels easy and smooth.

I cut down two Nerfdarts so they would survive getting pressed into the tightfitting barrels.

I let my son demonstrate the gun to my wife so she'd know it's safe to use,..
Ahem..

He cocked back that hammer a bit too happily and BLAM!!
Two cats and one dog ran for cover...( because of the sound, they were safe)I've heard of scaredy cats..but a dog?
:D
She still okayed it though... all in all it's just a nerfdart.Way more bark than bite..
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002.JPG
yep!
Those are Nerfdarts.I cut them short as it's a tight fit and at normal length they tend to collapse when they are pushed in.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Brian the brain » Tue Mar 12, 2013 2:17 pm

Too hide my boys identity on the web I whited out the vid and removed the sound of the last shot as he said something during the shot.

He's 10 so I need to protect him.

His 3rd shot clearly shows a hit...



Pressure used : about 2.5 bar -wich was enough for 4 shots.
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Last edited by jrrdw on Sun Oct 20, 2013 1:42 pm, edited 1 time in total.
Reason: Fixed video.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: wyz2285 » Tue Mar 12, 2013 2:36 pm

Actually without color the nerf darts really looks like shotgun shells :lol:
If the reload is smoother it would be great.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Brian the brain » Tue Mar 12, 2013 2:56 pm

Reloading is fine..
It's his mini-me tiny little wee hands..

so..

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Last edited by jrrdw on Sun Oct 20, 2013 1:38 pm, edited 1 time in total.
Reason: Fixed video.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: jackssmirkingrevenge » Tue Mar 12, 2013 5:29 pm

That is one happy little man :) kudos Brian, you're the dad surely many of us wish we had!
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Unread postAuthor: Brian the brain » Thu Mar 14, 2013 12:24 pm

Muchos gracias amigo..

Did I mention this thing is killer on liquid butane/propane mix??
No reg needed!

I got almost limitless supply of these expired nailgun cartridges.
We sell them and they are thrown away as they can't be sold anymore.
They still hold their pressure though..

Wich is all I need....no combustion...
Basically it's a greengas gun now.

One filling gives me 40 + consistent shots.

A single cilinder can fill the gun over and over...haven't emptied the first one after 4 complete fills...still liquid inside. :D
Just press the hose onto the cilinder to refill the gunbody..

Also made a little slugholder..
More for looks than anything.
My wife wants me to make it look more like a toy..
Need some flourescent paint....
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Attachments
ButanepropanepoweredNerf 001.JPG
ButanepropanepoweredNerf 002.JPG
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
User avatar
Brian the brain
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Unread postAuthor: jackssmirkingrevenge » Thu Mar 14, 2013 2:49 pm

Brian the brain wrote:My wife wants me to make it look more like a toy..
Need some flourescent paint....


Booooo... but fair enough I guess.
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Re: Doublebarreled Whippet.

Unread postAuthor: Brian the brain » Sat Nov 09, 2013 3:58 pm

Topic moved.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Re: Doublebarreled Whippet.

Unread postAuthor: dart guy » Sun Nov 10, 2013 9:29 pm

you should pain the tips that's it. also you should make a sanding dowel and have your son ream the loading ports so that they are slightly larger.
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when life gives you lemons... make root beer and leave the world wondering how you did that :D
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