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Posted: Tue May 13, 2008 6:07 pm
by rcman50166
lol The outer tube is a bit smallet than that of a regular pen tube. What you see there is evidence of me smashing the top in to fit the tube kinda like pvc and a potato, except harder. :lol:

EDIT: the video is now up. I slapped it together so it's not very good. :oops:

Posted: Tue May 13, 2008 6:17 pm
by Sticky_Tape
You should use a shock pump. beat JSR to it :D :D :D :D

Posted: Tue May 13, 2008 6:22 pm
by rcman50166
Well I use this because it is the only pump i have that can attach to shrader valves. My friend is holding my 250PSI mini compressor at his house so I can't use that until the weekend. The mini pump is very concealable though...

Posted: Tue May 13, 2008 6:31 pm
by Sticky_Tape
Maybe you could make a consealible shock pump?!

Posted: Tue May 13, 2008 6:43 pm
by rcman50166
I was thinking about making such a pump. It would not be very easy. Creating those pressures requires a lot of force. I was thinking about making a 500PSIG stomp pump but then the bottom line came out to be too much, especially for a pen gun. It is also hard to make things seal at those pressures especially moving seals. That little piston in my pen gun took about 15 man hours to perfect.

Posted: Tue May 13, 2008 7:25 pm
by rcman50166
Here's an interesting thing. Compare my pen gun to JSR's. They are displayed in the same manner. I'll put them side by side to make it easy.

Image

Image

Posted: Tue May 13, 2008 7:38 pm
by Lentamentalisk
Great job! it looks so clean and pretty!

Posted: Tue May 13, 2008 8:02 pm
by STHORNE
I read and read and couldn't find the answer to my question.

How did you attach the schreader to the chamber? It's very clean and I can't see any solder points or welding marks...

Posted: Tue May 13, 2008 8:23 pm
by OuchProgramme
I cant believe JSR hasn't posted in here yet ;).

An epic battle

Posted: Tue May 13, 2008 8:25 pm
by STHORNE
no kidding. I'm guessing he's too pissed off that you showed him up to post lol.

I think he needs a stress ball

JSR = :angry5: lol

Posted: Tue May 13, 2008 8:34 pm
by pizlo
Aye sticky, I do owe you an apology, I misunderstood your question. Sorry mate.

Posted: Tue May 13, 2008 8:58 pm
by MrCrowley
STHORNE wrote:no kidding. I'm guessing he's too pissed off that you showed him up to post lol.

I think he needs a stress ball

JSR = :angry5: lol
I think he's still settling down in Spain or out with the chicas :D

Posted: Tue May 13, 2008 9:09 pm
by ammosmoke
LOL!!! Good one. I think it looks great, but u might want to be more careful about dissing older members like JSR (even if it was subtle). Anyways, great gun. I like it.

Posted: Wed May 14, 2008 3:17 am
by jackssmirkingrevenge
MrCrowley wrote:I think he's still settling down in Spain or out with the chicas :D
Right you are, had a hell of a long weekend :D

Very nicely done, I built my pen gun in a few days as a quick "must enter something in the contest" project and there was a lot of room for refinement, glad to see someone made the effort :)

As I always say in these cases though, small volume and calibre needs high pressure to be effective, I would definitely invest in a shock pump or similar ;)

Posted: Wed May 14, 2008 7:00 am
by SpudFarm
nice little gun there rcman!

any chrony results? "no i have note read mere than the first page"