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 75 users online :: 4 registered, 0 hidden and 71 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Elephant Rifle mk1 and mk2

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

Elephant Rifle mk1 and mk2

Unread postAuthor: Major Collins » Sun Jul 14, 2013 7:49 am

My first rifle post in joining this forum!

Well this is my 1/2 inch piston valve rifle.
The barrel 16mm(roughly)x65cm long steel. Fits marbles nicely. Preferred ammo is homemade plastic nail darts.
Blowgun pilot
soldered in schrader valve
Air chamber is 40mm pvc, goes up to 160 psi ive bombsheltered and tested it multiple times
i have a slighly smaller airchamber that is 40mm copper sleeved in pvc estimated maybe 300psi with it , all i have is a 160 psi bike pump so ive never gone higher than that.

Piston
i took a "do not eat" cylindrical silicon capsule that was the diameter as my piston housing and poured epoxy in it and added a bolt through the middle to hold on a few pieces of inner tube bike rubber for the sealing face.

The inspiration was this
forums/50-qev-gun-new-stock-almost-finished-t21420.html




I dont have many pictures of Mk1 but i have a video



The Upgrade for mk 2 were
carved Wood stock and foregrip ,
piston housing shortened (there isnt a spacer piece before the tee as seen in the mk 1 video),
170 Psi gauge on air chamber
Scope and scope rail

This is mk2 closeup
Image

Rifle itself
Image
Image

Scoped out
Image

i was going for apocalyptic , howed i do? haha
ill throw in requested pics , just request!
  • 0

Last edited by jrrdw on Fri Oct 18, 2013 7:53 pm, edited 1 time in total.
Reason: Fixed video.
User avatar
Major Collins
1st Lieutenant
1st Lieutenant
 
Posts: 264
Joined: Wed Nov 18, 2009 6:18 am
Location: Western Australia
Reputation: 1

Unread postAuthor: dart guy » Sun Jul 14, 2013 8:15 am

that gun must be powerful i wonder if it would be able to handle a razor dart if you want me to explain how to make the dart just ask also i like the build but i would think that if you are gonna make a better air chamber out of copper you should make the air chamber resses into the fore stock as to not have that huge airtank get in your way and it looks like if you made a pvc or copper bi pod that is relitivly adustable (if you want plans i can get you them) that would fit ressesed into the stockit would be amasing, also maby if you made a scilencer it would be quiet er and look cooler also how much does it weigh
______________________________
:( and i infring on another great desine /\/\ (changed fake sig and a bunny)i accidenty killed the bunny (o.o)
(><)
  • 0

User avatar
dart guy
Major
Major
 
Posts: 397
Joined: Mon May 13, 2013 7:54 pm
Location: not telling you
Reputation: 5

Unread postAuthor: Blitz » Sun Jul 14, 2013 3:06 pm

I like your stock. Is that homemade or for a firearm?
  • 0

User avatar
Blitz
Colonel
Colonel
 
Posts: 621
Joined: Sat Apr 07, 2007 1:48 am
Location: West Chicago, IL
Reputation: 0

Unread postAuthor: Major Collins » Sun Jul 14, 2013 9:31 pm

@Dart guy ive been looking into a coax version and i am working on a supressor aswell. Its quite light , around 2 kg. what are these razor darts you speak of ?

@blitz yeah i carved it myself, its pine wood with a oak stain.
  • 0

User avatar
Major Collins
1st Lieutenant
1st Lieutenant
 
Posts: 264
Joined: Wed Nov 18, 2009 6:18 am
Location: Western Australia
Reputation: 1

Unread postAuthor: Blitz » Sun Jul 14, 2013 10:09 pm

Very nice. I like the oak stain, it came out well.
  • 0

User avatar
Blitz
Colonel
Colonel
 
Posts: 621
Joined: Sat Apr 07, 2007 1:48 am
Location: West Chicago, IL
Reputation: 0

Unread postAuthor: Gun Freak » Sun Jul 14, 2013 10:22 pm

Sweet man. Nice work on the stock. I like this gun a lot! How is the stock connected on the back? Also, why not elbow the chamber 90* so it is parallel with the barrel? Video!!
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: Blitz » Sun Jul 14, 2013 10:27 pm

I personally prefer how he mounted the chamber. Allows you to hold on to an actual rifle stock instead of more plastic/metal, which I feel adds ergonomics many guns here don't have. :)

It also loosely resembles a stick magazine like from a Thompson M1.
  • 0

User avatar
Blitz
Colonel
Colonel
 
Posts: 621
Joined: Sat Apr 07, 2007 1:48 am
Location: West Chicago, IL
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Major Collins » Sun Jul 14, 2013 11:16 pm

@Gun freak thanks! The blowgun is epoxied into the stock, i cut all the excess around the blowgun so it was just a straight tube.Then slid it through a drilled hole in the stock at the correct angle. Air chamber is straight down, its a prefrence thing .Blitz knows what im on about :)

Though mk3 will will either be a coax air chamber or a bolt action, or both!
  • 0

User avatar
Major Collins
1st Lieutenant
1st Lieutenant
 
Posts: 264
Joined: Wed Nov 18, 2009 6:18 am
Location: Western Australia
Reputation: 1

Unread postAuthor: jackssmirkingrevenge » Mon Jul 15, 2013 12:53 am

Nice, I especially like the way you integrated the blowgun into the structure, good job!
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: farcticox1 » Mon Jul 15, 2013 4:49 pm

I like it :wink:
  • 0


farcticox1
Sergeant First Class
Sergeant First Class
 
Posts: 149
Joined: Sun Mar 31, 2013 12:37 pm
Reputation: 9

Unread postAuthor: dart guy » Mon Jul 15, 2013 8:42 pm

Image
Image
these are 2 different razor darts(out of a masive colection of experimentals these arnt experimental) kinda like the comercial ones but home made so that anyone with a hammer and a metal rod about as thick as a bike spoke the blue one though should have a blowtorch and a pair of pliers and a vice or another pair of pliers
that last dart was shot by a 14 year old at 10-15 feet away from a pvc pipe with only breath power and the twisty leaves a twisting and punching action if shot into a solid block into somthin softish like styrafoam or clay
no darts have been shot from anthin but the pipe and the target is a card board box 1 inch with one side about 3/16 inch thickness
and when i mean handle i mean can it keep it straight at 10 feet and fire at a substantal fps with out destoying the gun like with airsoft by using light bbs or misformed weirt texture or somthin
  • 0

User avatar
dart guy
Major
Major
 
Posts: 397
Joined: Mon May 13, 2013 7:54 pm
Location: not telling you
Reputation: 5

Unread postAuthor: wyz2285 » Mon Aug 05, 2013 3:13 pm

Well I injured my right hand and I can't do much for the next couple days... Anyway, I managed to build one like thing out of standard parts, fire .177 cal pellets and arrows.
Guess what it worked way better than I thought, at 20 bar it sound like a fire arm firing the .177 pellets and perforated a 2cm thick wood.
It's so simple that I'm considering making a tutorial about it, I think at least it would give beginners a chance to have a nice rilfe.
Anybody back me up on this idea?
  • 0

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
User avatar
wyz2285
Major General
Major General
 
Posts: 2244
Joined: Sat Mar 06, 2010 7:50 am
Location: Porto, Portugal
Country: Portugal (pt)
Reputation: 12

Unread postAuthor: tigerblues28 » Mon Aug 05, 2013 3:51 pm

Id like to see it Wyz2285. I really like these guns and I think ive seen all the gun vids on youtube. :wink:
Nick
  • 0

User avatar
tigerblues28
Staff Sergeant
Staff Sergeant
 
Posts: 104
Joined: Mon Apr 01, 2013 12:56 pm
Country: United States (us)
Reputation: 3

Unread postAuthor: jackssmirkingrevenge » Mon Aug 05, 2013 11:23 pm

wyz2285 wrote:Well I injured my right hand and I can't do much for the next couple days...


*fap fa... nevermind*

:D

It's so simple that I'm considering making a tutorial about it, I think at least it would give beginners a chance to have a nice rilfe.
Anybody back me up on this idea?


Yes! The volksluftgewehr must live!
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: tigerblues28 » Tue Aug 06, 2013 12:16 am

You mean

*fap fap ...ouch... dammit*
  • 0

User avatar
tigerblues28
Staff Sergeant
Staff Sergeant
 
Posts: 104
Joined: Mon Apr 01, 2013 12:56 pm
Country: United States (us)
Reputation: 3

Next

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'