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Discussion Starter · #1 ·
I'm building my own MTW and am currently finished save for buying a handguard, making/buying the outer barrel, and making the hop chamber.

After spending years of my life designing software to create this extremely high tech design, I'd like to share it with y'all and see what you have to say.
Rectangle Font Parallel Diagram Drawing


All jokes aside, I thought of this last night in the shower and thought it may be good.
The way it works is by having a very smooth and perfectly centered hole above the hop patch, where an SS-nub will sit.
Above the SS-nub would be a bearing ball that is a tight fit in the hole, that could be pressing on a flat or indent in the nub, or even bonded to it.
A little above the ball on the side there would be a screw coming in at a 90° angle to the other hole, which would have a medium diameter high threads per inch screw with a tapered tip.
When screwed inwards, it would use the taper to push the ball and nub downwards, applying hop.

If you have a different design for an M4 style platform that you'd like to share, I'm all ears, and likewise with any improvements or things you would
 

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Discussion Starter · #3 ·
I will likely remedy this by making the nub taller if I have enough space, but I can make a .0001 or better clearance so there's really no wobble.

Yeah, I'm looking to avoid breaking open or drilling holes in the rifle to preserve it's looks and function, as well as easy use.
 

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Discussion Starter · #6 ·
I may do a nub shaped like this in order to keep the bearing ball centered, and keep the nub aligned and unable to twist and get misaligned.
Gesture Art Drinkware Cylinder Circle

Issue with this is idk if my grandfather or I have a mill bit small enough for this project to do this, as the diameter of the chamber will likely be quite small.

My material choices are brass, 303 stainless, normal steel, leaded steel, Delrin, Nylon, PVC, various aluminums, O1 tool steel, and some sort of weird micarta type thing, but I'll likely use Delrin because it's cheap and easy to machine.
I may do the stainless one, but I'll probably at least do a practice with Delrin to iron out any issues.

I think that the simpler the thing is the better, which can be seen in about every chamber out there since an AA chamber for the VSR-10 with mine, Masada's, or the chap with the CNC arms arms is arguably the best chamber out there, because it's simple.

The SVU chamber definitely looks interesting and may be another good option, but I'd likely need to slide my chamber out of my gun every single time.
Not the biggest issue being an AR style platform, but it'd still be a needless pain in the ass. I could maybe mill a huge flat depending on final dimensions so I could have a small wrench that goes in through the ejection port, but again, I'll have to see what seems better when I have everything together and measured up. Another possibly good choice though.

While I do machine my own stuff, I've got "limited machinery", a South Bend lathe, a huge lathe with low RPM that I hate to use, a factory lathe that was only for one operation and is now a lathe with a 3/4 inch max stock diameter and difficult homemade controls, and a Bridgeport mill that I'm still getting the hang of using. I've got my highly experienced grandfather to help me out, but having machines with limited RPM and only manual controls is definitely limiting in what I can do.
 
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