Tuning Looking for Southern CA fabricator to make tuning jig for my RAW HM1000x

[BK_SouthBay]

I'm tuning my air rifle and looking for a local fabricator in Southern California to make the jig shown below from aluminum stock.

This will allow me to mount my air rifle action out of the stock with an air pressure gauge connected to the action and a dual regulated air supply providing various pressure from 140 to 195 BAR and tuning the hammer spring weight and spring tension to find the optimum settings for various pellets and slugs.

Drawing obviously not to scale.

Any recommendations are appreciated.

 

[Xolotl]

Something like the attached pic

 

[phillip]

I know it’s a relatively simple piece to machine, but I think you may be unpleasantly surprised at what a fabrication shop will charge. Do the dimensions need to be as critical as what you’ve laid out? Do you really need your measurements to be to the tenth of a thousand?

I only ask this because if you take it to a machine shop, they’ll do what the drawing tells them to do, and precision machine work isn’t cheap.

Even buying a 2” x 3” piece of aluminum is expensive. A quick google search shows that a 24 inch bar will cost $85 and up.

I wish you good luck in your endeavor, and I hope you can find someone to machine this for you, but be ready for the sticker shock.

 

[BK_SouthBay]

I know it’s a relatively simple piece to machine, but I think you may be unpleasantly surprised at what a fabrication shop will charge. Do the dimensions need to be as critical as what you’ve laid out? Do you really need your measurements to be to the tenth of a thousand?

I only ask this because if you take it to a machine shop, they’ll do what the drawing tells them to do, and precision machine work isn’t cheap.

Even buying a 2” x 3” piece of aluminum is expensive. A quick google search shows that a 24 inch bar will cost $85 and up.

I wish you good luck in your endeavor, and I hope you can find someone to machine this for you, but be ready for the sticker shock.

You're absolutely correct, that is my mistake and should have noted tolerances can be +- .025.

 

[IndyDurtdigger]

You could make one of those yourself out of wood with a drill bit, a coping saw, and a chisel. Make a concept one out of cheap and easy to work pine. Once you know it'll do what you want make a better one out of a more durable wood.

 

[HogKiller]

Something like the attached pic

View attachment 424695

It's good to have friends with CAD software.

 

[Xolotl]

Other cheaper option.

 

[BK_SouthBay]

Something like the attached pic

View attachment 424695

Yes