SpudFiles

Alright so I'm building a hammer valve, finally.
I've been flooding other threads about it, so I'll just make a new one.

The valve will most likely be a McMaster 1/8" push button. Operating pressure of 260 psi max, unless my fridgy can do more (doubt it).

The part I'm working out is the striker.

I've started the improved drawing... made ammends to the striker length and spring adjustability. But I'm stuck on how to construct the striker such that the weight can be adjusted and a screw can be threaded into the side. Any ideas?

I will be using a 2" long spring, or somewhere around that. These CAD drawings are very precise... but in reality it probably won't be such. This is conceptual so far, so some things will likely change as I start the build.
McMaster part 9657K121 is basically the spring I am aiming for (although I won't be ordering 12 of them ).

The max adjustment length as you can see is 2.5", so that the spring is only compressed a 1/4" by the 3/4" long striker. This is obviously not enough compression to significantly accelerate the striker, so it will likely never be adjusted to said length. The shortest I can adjust the spring length is 1.75", so that when it is cocked, the spring is 1" long (an estimated max compression length). So, the adjustability will give me full control over the strike strength and power, from lowest to max.

I'm thinking I will first construct the highly adjustable prototype hammer assembly, then once I fine tune it, I will reconstruct some parts with fixed properties, such as weight and length, in an effort to simplify the final product.

Here we can discuss my project. Thanks :occasion5:

I wish you well!!

Thanks, any ideas for the striker?

Make a firing pin. Sort of easy to do right? (just modify my picture a bit to make it easier.) Red is the spring to release the pressure on the valve, black is the body, and grey is the pin.

No.... You see, you're missing the whole point

Stick to my proposed concept please

I dunno what you mean though. Make it a bit clearer?

Sear retained striker. Keep adjustability in mind. I'm trying to make it as efficient as possible, which means eliminating bouncing, being able to control dwell time, among other things.

Well, take a piston from a airsoft sniper, and modify it to your needs. Add a couple vent holes so it doesn't build pressure, and I would say your good to go.

Yeah, because I have spare airsoft snipers.

For 15 bucks you get the piston, spring and spring guide. Good deal if you think about it.

Dude, come on! Be serious.

I can build a striker for a dollar. Why the hell would I buy one.

Ease of use, plus if you build it right you can reuse it as a piston for a pump or something.


Edit,
Well, here's another idea. An inline striker. The notch on the bottom is for your sear, and the red is a metal plate. That way you can make it out of a light weight plastic, and prevent damage to the striking face with a metal plate or a bolt head.

I'm not sure how complicated this has to be. You just need a solid cylinder of metal that's a slide fit in your metal tube that will house it.
Not that hard to find.
A brass nipple can house the striker and you can use an end cap with a hole drilled in it so that the striker can be pulled back by hand much like some single shot .22's.
You can readily experiment with a variety of springs or even have a couple of notches for your sear to engage to vary how long a "swing" the striker can take at the valve pin.

Facepalm warhead... Pacepalm... Did you even read the OP

Hawkeye, I have a new idea, I like it much better. It's very simple. I don't need any more help for it.

Your OP doesn't make much sense...