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Old 01-27-2012, 07:17 AM   #401 (permalink)
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I have access to a hydraulic stamp press we use to make small steel plates which screw onto motorcycle side covers...working on a set of dies that would allow a one-step forming pf the baffles which took 3-4 steps in the video.
So, 1"? 1.25"? 1.5”? 2"? All of these?


Here is a pic of some copied from Maxims design...
Those came out nice. Stainless?
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Old 01-27-2012, 07:36 AM   #402 (permalink)
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For your reading pleasure

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Old 02-01-2012, 07:48 AM   #403 (permalink)
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Muzzle Brake

I do not have a mill (yet) and I am trying to come up with a brake/suppressor mount.
The YHM mount is patented. So while I could get away with cutting there ACME specs onto my can, I better not try and sell that can.
Making the can have a standard 30cal 9/16 or 5/8 thread is possible but I like the idea making the can a little easier to remove.

So on the left is the piece that threads onto your barrel. Internally threaded 9/16 or 5/8. External threads are going to be some 1" ACME standard pitch. The external taper is designed to meet with the same taper on the can itself. The idea being that your screw the can on until the taper 'seals' This keep gas and crap from leaking and getting onto the threads.

The brake itself is a 1.75x.75 piece of stainless. Center bore the entire thing .32". Then bore out the first 1.25" depth to an ID of .65". I was thinking of a series of radial holes around the center bore from this initial chamber, into the second chamber. The second chamber will open to the sides, like the end of this.


I dont know if this would be threaded to the 'mount' piece thus providing a easily replaceable blast shield or maybe press fit and weld.

The part on the far right is the beginning of the can itself. Right know it is going to be 1.75x8x30cal.
The initial chamber is 2" long and then each successive baffle will be .25 smaller with the last one being 1" long.
Baffles will be stepped cones posted earlier.
I got a foot of 1.75 stainless tube and solid rod yesterday. i have the scaled plans all printed out so I am ready to start cutting baffles. I have never done acme threads so will have the basic can done, and simplify the mount.
For now I am going to just make the muzzle end end-cap direct thread onto the barrel with the 2" blast chamber. Basically the muzzle cap and the peace in my plan at the far left will be one piece.

After I get acme done, I will turn down the OD on the end cap to 1" cut the acme and taper and then make a new end cap.
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Old 02-01-2012, 07:54 AM   #404 (permalink)
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Pete, if you are wanting to try steps I can send you a bunch of titanium valve spring retainers to try. We can hash out trade later
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Old 02-01-2012, 08:12 AM   #405 (permalink)
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All my reading about titanium makes me want to avoid it for baffles.
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Old 02-01-2012, 08:17 AM   #406 (permalink)
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inconel?
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Old 02-01-2012, 08:19 AM   #407 (permalink)
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I can weld and machine 316. I just cant see any reason to get all fancy.
4 baffles, some spacers, end caps, out tube. 30 cal can that can be taken apart. Pretty straight forward to build. Think I can sell them for 450.

On the .22 I have redesigned the monocore. Tube, end cap, monocore all anodized alum, 9black or OD green) Then the muzzle mount and blast chamber are stainless. going to weigh 5-55.oz. Not super light weight but respectable. Maybe consider it more of a rifle can than a pistol. 150-175$.

Anyway, I don't see mass producing these, but a couple here and there. If I can sell a couple will then buy a DRO for the lathe.
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Old 02-01-2012, 09:04 PM   #408 (permalink)
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A quick question how thick are yall making the back end caps for a .22? Are yall doing a a full .5, or some variation?
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Old 02-01-2012, 09:41 PM   #409 (permalink)
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A quick question how thick are yall making the back end caps for a .22? Are yall doing a a full .5, or some variation?
Half inch is incredibly thick.
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Old 02-02-2012, 05:43 AM   #410 (permalink)
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OAL is .625. Standard length threads for rifles is .600 including relief
Pistols are all over the place but generally .435
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Old 02-02-2012, 12:21 PM   #411 (permalink)
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My 22 tubes are 1x6
My muzzle end are .5x1dial stainless rod. Internal threaded .5x28 and externally .92x32

I want to make a custom bit that will create a u shaped channel between these two areas to remove weight and the OD thread only needs to be .25 so the end cap may end up looking like a T
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Old 02-02-2012, 02:58 PM   #412 (permalink)
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Very small hole saw?
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Old 02-02-2012, 05:16 PM   #413 (permalink)
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My 22 tubes are 1x6
My muzzle end are .5x1dial stainless rod. Internal threaded .5x28 and externally .92x32

I want to make a custom bit that will create a u shaped channel between these two areas to remove weight and the OD thread only needs to be .25 so the end cap may end up looking like a T
Are you working on 5.56?
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Old 02-03-2012, 01:02 PM   #414 (permalink)
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Are you working on 5.56?
Jumping to 30.
Just got the materials in. Will see how much I can get done this weekend.

Was chatting with a friend the other night and he thinks I should scale up the mono core. 1.75 alum rod and 1.5 forstner bits.
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Old 02-03-2012, 01:08 PM   #415 (permalink)
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A quick question how thick are yall making the back end caps for a .22? Are yall doing a a full .5, or some variation?
Figured I would look at some commercial offerings.

First up is the mite. Mount is on the right of tube. it is stainless and looks to be .5. Not sure how it's fixed to the alum end cap.
Baffles alum, with blast stainless blast baffle at far left



Sparrow. One piece mount and baffle stack. Honestly don't know if alum or what


Element. Mount is on upper right. Pretty thick.


Element, Sparrow, Wraith, Pilot, Mite
Wraith and Pilot do not come apart
I am really thinking about cutting the ends off, and making my own end caps for them.

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Old 02-03-2012, 02:44 PM   #416 (permalink)
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How does the wraith sound?
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Old 02-03-2012, 05:19 PM   #417 (permalink)
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To my ear the Element is the quietest, the rest are all the same. Then mine, just a tiny bit louder. Don't need ear plugs for any of them. P22 host, fired in the garage with the doors closed.Will try out a different baffle design and see how that does.

This is the completed baffle.


This last can I made is 5.5"x.985 and weighs 5.0oz. I am very happy with those physical dimensions. I went ahead and measured of the COTS cans.

Mite is 5.25x1.04 4.1oz
Wraith is 5.5x1.26 6.7oz
Pilot 5.25x.998 5.1oz
Sparrow 5x1.07 6.9oz (the heaviest)
Element 5.5x.985 5.0oz
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Old 02-04-2012, 09:53 AM   #418 (permalink)
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Thank yall

As I suspected with a 1" dia tube there is not a lot of room for varying designs.

I did find an over the barrel design: ( The pic is HUGE )

http://sub-silentsuppressors.com/wp-...pressor-02.jpg

Same guy also does some ports on the buisness end that I havent seen on most of the commercial suppressors

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Old 05-04-2012, 07:32 AM   #419 (permalink)
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As a matter of fact I am thinking about this for a new jig


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Old 05-04-2012, 09:29 AM   #420 (permalink)
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Old 05-04-2012, 12:35 PM   #421 (permalink)
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Old 05-04-2012, 02:16 PM   #422 (permalink)
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I'm gonna hafta charge more than I did for this one

I tried doing the side holes first, but they caused the long thru hole to deflect almost 0.010 at the end of the 6.5", so I remade it and did the long hole first on the second one. The ten thou probably wouldn't make any difference, but it wasn't right and it pissed me off.
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Old 05-08-2012, 02:22 PM   #423 (permalink)
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Old 05-08-2012, 03:36 PM   #424 (permalink)
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Old 05-09-2012, 05:59 PM   #425 (permalink)
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