7A310B0F-7133-45BD-850D-6A43AFB70666.jpeg Hello all I appear new to the forums, but I’m really not! I have been on here since dial up internet, and the spud tech site forums. Anyhow I stop in now and again to see what’s new here, and what badass things you creators have made! With that being said, ...

I do want to reiterate though. I mean no disrespect.

I dont think you actually Google the magnus effect? Its not the "aerodynamic" effect. It's absolutely aerodynamic, and I didn't need to google it. Higher education in physics will do that for you :) What would you suggest as a mechanism for the magnus effect other than aerodynamics? Unicorn farts, ...

Got a new toolbox for Xmas

And another transformation into Nerf Rival, mainly for the grandchildren to play with
BFG cut down and reshaped. Gravity fed tube holds 8 rounds.

I like the ladies, I promise I won't "fuck" you. Lol

Butane when burned releases a residue of water and carbon dioxide, which is what you say, referring to the "internal factor 1". The second internal factor is the pressure drop with respect to atmospheric pressure, which condenses moisture, as Mrfoo says. There is at the same time, the normal humidit...

I like @hectmarr 's work on these autonomous hybrids. I'm thinking about a design for a single-pump, high-mix hybrid. It seems to me that going for multiple pumps is a waste, since the resistance of the first few strokes is low, so one's arm is getting a lot of exercise just going back and forth. [a...

A few more thoughts: I looks like Hector's little pistol has 16mL chamber, or ~1 cubic inch. I feel a bit silly for planning a rifle around a chamber with half that volume. So, I eked out a bit more performance by extending the lever arm to 24," the attachment point to 6.5," and increasing the cylin...

Glad my antics serve to inspire and can be improved upon. What I suggest is trying to keep everything as simple as possible. For the rest, surely a lever will increase the compression and the complexity and size of the weapon, which does not have to be a problem, unless like me, you are looking for ...

Nice work Jack.

As far as useful skills go, threading is right up there with grinding tools...opens options and doors to all kinds of new projects!

Al

Thanks everyone I didn’t even realize I had got reply’s until just now! Yes i was going for a coaxial design the small groves were to allow the chamber to be filled past the piston or an equalization channels as there is none on the piston itself and a spring would also be used to aid in the sealing...

farcticox1 wrote: ↑

Wed Jan 06, 2021 5:19 pm

I guess an old rifled barrel would be the answer, but I think that's kind of cheating :?

Rifling buttons are cheap on aliexpress. Just saying, like.

The three wise men stopped by my house and gave me a bomb for nationally manufactured pcp weapons. It is a "Spartan 300" from AIRTEC. It's for 300 bar but in this video, they tested it up to 600 bar and it still works fine. It is simple, solid and not very hot ... I don't know how they did that. In ...

I want to show a test of the system for my new hybrid to repeat. I finished building it today, and it works fine. I have to sort a little all the elements that are currently scattered on the work table. I'm working at 5X for testing, and it will be at 8X when the gun is finished. The valve I use is ...