Anyone seen this PROOF yet if so or even if Not check it out

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
Theonepbs
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Mon May 02, 2022 2:07 am

I finally am back at least for a few mins to post!!, Doing a lot of stuff!!

anyhow anyone see this yet if so thoughts and opinions

not my design but am printing the parts at this time and I for some reason can not figure out how it suppose to work will have a better idea when i get one together



also found this gem ( pretty cool )

https://www.thingiverse.com/thing:4500713/files
Theonepbs
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Mon May 02, 2022 5:10 pm

i forgot to mention the proof airgun files are on odyssey free i think there is a link in the description but incase not a search will come up with it
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farcticox1
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Mon May 02, 2022 8:03 pm

I like it, what's the magazine capacity ? That's why I made my vortex hold 2000 bb's
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Theonepbs
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Tue May 03, 2022 10:29 pm

the valve system is quite unique and not any i have came across before so different i had to print it to see just to attempt to get the idea the mag holds 40 and is part of the valve system

interesting system and since its printed and in use of 850PSI
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ckman
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Wed May 04, 2022 1:24 am

I've seen this and considered building one, but decided against it as it seems to lack power.
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ckman
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Wed May 04, 2022 1:25 am

I've seen this and considered building one, but decided against it as it seems to lack power.
Theonepbs
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Wed May 04, 2022 8:20 pm

how did you come to this conclusion, without building one

the main reason i posted it here is it seems to show that in fact 3d printed parts are very capable of holding pressure

its a new to me valve type and since people on here have been making very nice pneumatics for a long time
i figured no better place to post it in a new starting point that can be improved massively
Theonepbs
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Wed May 04, 2022 11:56 pm

apparently my second link did not show up correctly or maybe it did soes not seem like it anyhow this seemed pretty cool nerf launcher to me

https://www.thingiverse.com/make:959070
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farcticox1
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Thu May 05, 2022 4:32 am

I like both of them, I would like to see exactly how that airsoft works, 477 fps on the chrono seems ok to me for what is.
OK, so apparently it's a 0.25 steel BB gun.
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Anatine Duo
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Sat May 07, 2022 7:57 am

I want to know more.
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farcticox1
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Sat May 07, 2022 1:51 pm

There is a downloadable PDF for it

https://odysee.com/@INMC:d/proof:e9
FerdBlu
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Mon May 09, 2022 9:19 am

Have you figured out how it works? It has to be extremely simple, given that the hardware kit he sells, has only very few parts.
Powerwise, you never see the gun when he fires, the video cuts every time he shoots. Seems a bit fishy, he is hiding something...
harle29
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Mon May 23, 2022 3:03 am

I like both:)
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jackssmirkingrevenge
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Thu Jun 16, 2022 7:19 am

Fascinating device!

From what I can tell, it's a variation on the detent BBMG using a flexible seal as a detent.

I had made several experiments along these lines, here is one of them in 3mm caliber.

One of the issues I encountered is that the following BB plugged the barrel too quickly, so the air was blocked off before the first BB left the barrel.

My solution was a blocker mechanism that prevented the next BB from being fed until the first BB had left the barrel and pressure in the ammunition chamber had dropped.

In the case of this design, in order to solve this issue there appears to be a bypass line in the magazine/firing chamber that I've highlighted in red below:

Image

All in all it looks like very good design and execution, especially the removable magazine, and it appears to have been built in the spirit of the Caselman Air Machinegun:
"with gun prohibition perhaps staring us in the face it is nice to know you do not have to be without protection. This gun was designed with the idea that any and all guns could be banned and ammo could be illegal or unavailable, this is why we strongly urge you to have these plans. To have the security of knowing you can make a high powered automatic weapon using high pressure air………..a self sufficient alternative for home protection and defense, and also the inexpensive pleasure of machine gun shooting."
hectmarr wrote:You have to make many weapons, because this field is long and short life
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