Thanks for the welcome back. So here is where I am at the moment. As recommended many moons ago I have added a large washer to secure the rubber face seal to the front of the piston. As before this is attached with an M10 screw. Pressed into the rubber face seal is a sleeve to allow the screw to cla...

Not technically a spud gun but I bought myself a crossbow and it's quite fun and having never fired a "proper" one before, surprisingly accurate.

This was at 40 yards:

I would say red chef caliber is more available at my local supplier than russet.

So been gone for awhile but I am back for a min here is some ammo I 3d printed on a whim I’ll post more pics to this post when I locate the others mostly 68 cal But this guy is 1.5” diameter / 39mm And no it is not just plastic ( PETG) in This case I based the design some what in a first strike roun...

ok i found some more photos of stuff I have printed recently, and a cannon I made awhile back also one I printed

note: spring loaded finned projectiles red and grey for size comparison the one on the left in the picture showing 2 different ones is 12g i have alot more but am still locating them

This little pressure regulator, I made it. As the areas on the two faces of the piston, (6.3 mm) are equal, the high pressure compressed air, (arrow in dark blue), that enters produces the same force in both directions, and the piston is balanced, without any math. The displacement of the piston is ...

Thanks for the suggestions folks I ended up buying a section of metric PVC here MECCANIXITY PVC Rigid Round Pipe 45.2mm ID 50mm OD 350mm Light Grey High Impact for Water Pipe,Crafts,Cable Sleeve https://www.amazon.com/dp/B09J14XH93/ref=cm_sw_r_apan_glt_fabc_6N8GEHY78V6YNQNN7PKY?_encoding=UTF8&psc=1 ...

Moonbogg wrote: ↑

Fri Oct 29, 2021 6:00 pm

I think you'd have to try it out yourself.

Maybe not, given this appears to be a bot account promoting whatever is in the signature.

But it's pretty damn next level.

I just finished making the v3 based on hectmarr's design. This is the final arrangement: Regulator nacrt-Model01-00.png The body is 2011 Aluminum, just so it would be easier to machine. Both ports are threaded for G1/8 RegV3AlCuBiPb.jpg Piston is 5,8mm steel rod with 3x1,5mm (6mm OD) O rings RegV3As...

I realize there are people out there who are much faster than I am, but I was pretty proud of this run.....

Merry Christmas and Happy New Year to one and all Enjoy and stay safe out there.

Currently 10% away from functionality, 60% away from envisioned goal. Specifications: - Measured Propylene and Propane fuelled with future plans to allow it to accept compressed air and unleaded petrol injection. Allowing a diverse range of accelerant. - Formulated to accept many different projectil...

Added the vertical grip (drill handle) and the double flip mags, it just comes with one mag.

Late to the party but FWIW, the law is written as an AND. A medium sized potato leaving the barrel at 500 FPS has a bit over 3kJ of energy, so that's fine. A 2" barrel at the same velocity would be 1.6kJ. It would have to be shooting over 1200 fps to be prohibited. A 20mm slug of a potato is going t...