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High pressure pen gun MK1
Posted: Mon Aug 04, 2008 1:03 pm
by Necrosis
It's a pen sized piston valved pengun from hell.. atleast.. it's going to be.
The pressure test at 8 bar showed no leaks.
Up that pressure 10 times.. and that's what I am going to try it at next. when my pump is finished.
I might even go all the way up to 200 bars.. since this can easilly hold that.
Well is it any good to even use a piston at such high pressures?
Posted: Mon Aug 04, 2008 1:06 pm
by SpudFarm
you should use a machined piston that is as light as possible.
Posted: Tue Aug 05, 2008 10:09 am
by Necrosis
BUMP!
I finished the checkvalve for my high pressure pump!
I should be able to test this pengun soon
Posted: Tue Aug 05, 2008 10:43 am
by elitesniper
can we see some more detailed picture?
Posted: Tue Aug 05, 2008 11:10 am
by jackssmirkingrevenge
lets see some internal pics
Posted: Tue Aug 05, 2008 12:31 pm
by Necrosis
jackssmirkingrevenge wrote:lets see some internal pics
There are not much internals yet.
I have yet to make a poppet valve in the back.
And the piston
Prorbably will do this once I get my 1/4th inch gas thread tap.
Posted: Wed Aug 06, 2008 11:56 am
by psycix
Is it really fat, or just short?
Whats the diameter on that thing? It looks a bit massive for a pen.
Posted: Wed Aug 06, 2008 12:53 pm
by blind909
psycix wrote:Is it really fat, or just short?
Whats the diameter on that thing? It looks a bit massive for a pen.
I think its more of a marker gun
Posted: Thu Aug 07, 2008 8:13 am
by psycix
Or a "pencil case gun"
Posted: Thu Aug 07, 2008 8:17 am
by jackssmirkingrevenge
psycix wrote:Or a "pencil case gun"
Interesting idea - imagine a row of four or five marker guns in a hard pencil case, it will give you concealed multi-shot capability, just like this
cell-phone gun - as a purely academic exercise, of course
Posted: Thu Aug 07, 2008 8:59 am
by Sticky_Tape
looks like it will pretty cool can you give us a pic of it next to a rule?
unfourtunatly just a guess I don't think that you will find a type of rubber to hold that much pressure.
BTW holy shite this will use 200bars? What is your airsourse scuba tank?
Posted: Thu Aug 07, 2008 11:19 am
by Necrosis
Sticky_Tape wrote:looks like it will pretty cool can you give us a pic of it next to a rule?
unfourtunatly just a guess I don't think that you will find a type of rubber to hold that much pressure.
BTW holy shite this will use 200bars? What is your airsourse scuba tank?
My high pressure pump..
Or if that fails, my scuba tank, yep.
Posted: Thu Aug 07, 2008 11:26 am
by Sticky_Tape
Ha Ha it's longer than mine mine is olny 160mm. you are going to get 200bar out of your pump can you give a pic?
Posted: Thu Aug 07, 2008 11:36 am
by Necrosis
Sticky_Tape wrote:Ha Ha it's longer than mine mine is olny 160mm. you are going to get 200bar out of your pump can you give a pic?
It's not done yet. (need to wait for stupid o-rings to come in. :/ (Yep hydraulic grade ones)
But I must have a pic somewhere.. let's see...
Okay wait up 5 min.
Posted: Thu Aug 07, 2008 11:46 am
by Sticky_Tape
it doesn't mattre if it isn't done yet just give us a pic.