The Improved Pen Gun

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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rcman50166
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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:
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Sticky_Tape
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You should use a shock pump. beat JSR to it :D :D :D :D
You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
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rcman50166
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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...
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Sticky_Tape
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Maybe you could make a consealible shock pump?!
You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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rcman50166
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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.
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rcman50166
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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.

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Lentamentalisk
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Great job! it looks so clean and pretty!
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STHORNE
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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...
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OuchProgramme
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I cant believe JSR hasn't posted in here yet ;).

An epic battle
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STHORNE
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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
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pizlo
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Aye sticky, I do owe you an apology, I misunderstood your question. Sorry mate.
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MrCrowley
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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
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ammosmoke
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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.
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jackssmirkingrevenge
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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 ;)
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SpudFarm
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nice little gun there rcman!

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