paintball gun

[markdem]

ive been fortunate enough to have access to a fairly well kitted workshop in my spare time and i decided to get my machining skills up with a little project.

[kevin-db]

Awesome!
What is the power source?
Co2 cartridge? Or do you connect the paintball tanks?

[jackssmirkingrevenge]

Welcome to the forum and excellent work! I'm curious about the rod/tube sticking out of the barrel shroud, does it pipe gas from the barrel to reload the mechanism? It looks like an inline valve but a diagram of how it functions would be appreciated

Co2 cartridge? Or do you connect the paintball tanks?

It looks like a 12 gram adapter: https://www.aliexpress.com/12g-co2-adapter_reviews.html

[farcticox1]

Is it me or did it look nice in silver ?

[jackssmirkingrevenge]

Is it me or did it look nice in silver ?

Seconded

[Gippeto]

Appears to be pump action. Nicely executed! 8)

[markdem]

12g co2 cartridges. But i could connect it up to hpa if i really wanted. The tube/rod sticking out of the barrel shroud is just a linkage bewteen the pump handle(barrel shroud) and the bolt. I agree it definitely looks wicked cool in plain machined aluminium but i play 10-shot games and i need to be camouflaged to get as close as possible before taking a shot. So flat black spraypaint it is

[markdem]

a lot of things changed throughout the build process. feed neck was added. barrel is clamped into place etc. but the basic mechanism remains the same. if you want to find out more about how the mechanism works, try googling "nelson valve animation". and yes, as you may have guessed, this is a nelson valve based pump action. all measurements are in decimal-inch form. any measurements left out of the diagrams are because i knew id have to be flexible to some degree, regarding tooling and available materials

1.png (18.44 KiB) Viewed 6044 times

2.png (11.05 KiB) Viewed 6044 times

3.png (6.8 KiB) Viewed 6044 times

4.png (10.61 KiB) Viewed 6044 times

5.png (1.1 KiB) Viewed 6044 times

6.png (5.05 KiB) Viewed 6044 times

7.png (12.15 KiB) Viewed 6044 times

8.png (30.18 KiB) Viewed 6044 times

9.png (38.72 KiB) Viewed 6044 times

[jackssmirkingrevenge]

any measurements left out of the diagrams are because i knew id have to be flexible to some degree, regarding tooling and available materials

I know where you're coming from

Great of you to post the drawings, again great job! Was this done on manual machines?

In case others are wondering about the mechanism, this is how it works:



Basically an inline hammer valve like the Stealth/Talon.

[hectmarr]

Very good work and deluxe diagrams! With the animation of Jack, and the diagrams is very clear, especially for those who do not know so much. I really like this job! regards :bounce:

[markdem]

Was this done on manual machines?

correct. a lathe with threading capabilities and a bridgeport.

and thank you all for the comments! much appreciated

[markdem]

everybody likes a video, so i made one to prove that its not just a pretty model. auto-trigger needs some work but other than that, it works well. about 30-40 shots per 12g CO2

[youtube][/youtube]

[jackssmirkingrevenge]

Looking good, and that's a very respectable shot count for a big bore from a 12 gram! Have you checked the velocity over a chrono?

[markdem]

unfortunately i have not checked chronograph readings yet. maybe one day ill find a cheap chronograph at a yard sale or on craigslist