Reverse plunger pistol plan GUN FINISHED!!

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SpudFiles Forum Index » BBMG/Strafer Showcase » Reverse plunger pistol plan GUN FINISHED!!

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Reverse plunger pistol plan GUN FINISHED!!

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ajdevi92

Posted: 02/11/2008 3:38 AM Post subject: Reverse plunger pistol plan GUN FINISHED!!

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

heres what i made of blind909's pistol im bout half threw making mine
mines got a 17cmx32mm chamber and i havent worked out my barrel size yet

update 2#
ok it finished the spring is from an old pnuematic door closer very powerfull i shot my self in the stomach from 50cm away and ive still got welt 3hours later lol hurts....

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Last edited by ajdevi92 on 02/20/2008 3:47 AM; edited 1 time in total

pizlo

Posted: 02/11/2008 7:15 AM Post subject:

Colonel

Joined: 22 Dec 2006
Posts: 658
949.26 Spud Bux

Are you using a clothespin trigger/catch mechanism?

fretmelter

Posted: 02/11/2008 8:20 AM Post subject:

Corporal

Joined: 09 Jul 2007
Posts: 66
163.37 Spud Bux

wait wouldn't that make a vacuum at the barrel? or am i mistaking, its kinda hard with the picture versicle.

ok nvm i got it....that is pretty intelligent

but how are you going to ensure the bb doesn't come out prematurely?
it would create a slow pressure increase as opposed to having it rush out all at once when the pressure reaches maximum potential

blind909

Posted: 02/11/2008 8:56 AM Post subject:

Colonel

Joined: 02 Aug 2007
Posts: 645
755.37 Spud Bux

yes it will make a vaccum, thats why you prime it then load it.

ajdevi92

Posted: 02/11/2008 15:21 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

exactely umm yeh how would you do that keep the projectile at the end maybe put a tiny bit of silicon in the inside ?? might work

ajdevi92

Posted: 02/11/2008 15:22 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

exactely umm yeh how would you do that keep the projectile at the end maybe put a tiny bit of silicon in the inside ?? might work i havent work out my trigger yet but it has to be strong as im trying to get a good sized spring

blind909

Posted: 02/11/2008 16:58 PM Post subject:

Colonel

Joined: 02 Aug 2007
Posts: 645
755.37 Spud Bux

btw, you dont need the rubber band on the trigger, it holds just fine without, also, what is your plunger made of? and lastly what diameter(in the si system) is 32 mm?

OuchProgramme

Posted: 02/11/2008 19:45 PM Post subject:

Major

Joined: 12 Jan 2008
Posts: 373
534.55 Spud Bux

For the trigger...

All you need is a nail long enough to sustain the power of the spring w/ plunger...

It needs to be able to block it but move enough so that the it doesn't interfere w/ the plunger's movement.

Pretty simple, i think you over did it

ajdevi92

Posted: 02/11/2008 23:13 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

yea well stilll i havent made it yet

@ blind its 32 mm and my piston is made froman old rubber door stop has the bes fit ever in the chamber and the suction is amazing and the rubber band is to pop it back in automatically

hotknife ralphie

Posted: 02/12/2008 3:46 AM Post subject:

Private First Class

Joined: 04 May 2006
Posts: 28
11.29 Spud Bux

I don't suppose you know where you got or what brand the doorstop was? I have some 32mm pipe laying around and tried to size some doorstops for it. They were all either a tiny bit too big or too small.

ajdevi92

Posted: 02/13/2008 23:22 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

nope just found it lying around

Carlman

Posted: 02/13/2008 23:28 PM Post subject:

The Aussie
Brigadier General

Joined: 24 Nov 2007
Posts: 1170
375.30 Spud Bux

hotknife ralphie wrote:

if they are a tiny bit too bit just take some sandpaper to them

ajdevi92

Posted: 02/13/2008 23:47 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

i dont know if mines to big because i need a decent spring to push it back so ive found but it seems to be easy to push with my hand ?? i lubbed it up with vaseline and it moves smooth easi and creates alot of air and suction if i pull it the other way ive also made a new trigger system for mine heres the pics

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hotknife ralphie

Posted: 02/14/2008 6:19 AM Post subject:

Private First Class

Joined: 04 May 2006
Posts: 28
11.29 Spud Bux

How is the performance on it? Also what size spring have you got in it? Approximately the same size as the chamber I would imagine, better to check though Smile

ajdevi92

Posted: 02/14/2008 23:03 PM Post subject:

Major

Joined: 23 Nov 2007
Posts: 363
414.23 Spud Bux

amazing enough i havent got a spring yet

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