CMV wrote:I think what he's getting at is can he design his blast baffle so that a typical steel washer can be used as a user-replaceable part legally.

+1
Said, better than I.

I'm using the steel wipers as blast baffles to take the majority of the wear, the rest of the can will have normal baffles.

As I'm designing my form 1 .22 suppressor. I've read the ATF letter that says non-manufactures may replace wipers in suppressors. Can I design my suppressor to use steel washers as wipers in the blast baffle of the monocore? Since this form 1 is a one shot deal, I'd like to have something in the fro...

Wow, those look very professionally made. Good work.

I think I will go with the single end cap design after seeing all of these that worked fine that way. So back to CAD I go.

-Jim

What kind of suppressor do you want to build?

-Jim

Jim Yes it does call it out many times but the patent is for the baffles, there is a separate patent for the clam shells, it is still pending as far as I know but its called MPC technology. Just because it is integral to what is claimed doesn't meant there isn't ANOTHER patent that covers that aspe...

It doesn't look like the STAINLESS sparrow. This looks identical to the previous generation sparrow Here's the patent http://www.google.com/patents/US7856914?pg=PA1&dq=silencerco&hl=en&sa=X&ei=8LKJUP65BO-30QHPrIDwCQ&ved=0CD0Q6wEwAQ Hmm. So it does. I had no idea when I designed ...

It doesn't look like the STAINLESS sparrow. This looks identical to the previous generation sparrow Here's the patent http://www.google.com/patents/US7856914?pg=PA1&dq=silencerco&hl=en&sa=X&ei=8LKJUP65BO-30QHPrIDwCQ&ved=0CD0Q6wEwAQ Hmm. So it does. I had no idea when I designed ...

I'm not trying to be a stick in the mud, but did you get silencerco permission to produce this patented design for personal use? Looks nice. What cnc mill are you using and what controll software if you don't mind telling? I drew this up from scratch in CAD. It doesn't look anything like silencerco...

I got it, but how can I have variable tension to hold the tube in place over time if the rear cap is fixed in place?

-Jim

Historian: Yep, I can go longer if needed. What advantage would 6.5" give? I'll be using this on a semi auto so I don't want to create so much additional back pressure that more noise comes out of the breech. MCKNBRD: The end cap is there to clamp the tube in place. My intent is to screw the re...

This is my approved form 1 .22 design. My CAD won't show threads: The barrrel muzzle end cap is 304SS and has 1/2x28 threads on the inside for the barrel, and 11/16x28 threads on the outside to connect to the monocore. The exit end cap is aluminum and is also threaded 11/16x28 and will thread into t...

I wasn't there, and as far as I'm aware no one alive today was either, so I'm pretty sure nobody knows.

-Jim

Nice design, how did you make the bore hole?

-Jim

No kidding, this is amazing work. Truly art.

Excellent work. This is why I come to this site.

-Jim

Wicked, thanks for that. Again, the can looks great. I know a lot of people get into Form1 cans trying to save money, and without a machine shop like the ones you have access to it just makes NO SENSE. I try explaining that sometimes and it seems some people just straight up can't hear it. People n...

I'm glad they didn't use the sparrow. I don't see .22's in most movies as the suppressed gun being used. It's generally exactly what they tested a 9mm or .45 . Sure, it could have been better, but did they accomplish the goal, and give suppressors a good report? Yep.

-Jim

Do you have a mill? If so, put a chuck on your mill table. Chuck up your piece of stock. Use a co-ax indicator to center the stock under the spindle. Drill your hole with a center drill. Using this method you can get exceptional accuracy.

-Jim

If you really can't find access to a larger lathe. Consider using a steady rest. You can make your own like they did here: http://www.fignoggle.com/workshop/artic ... rest-day-1

You probably don't need a follow rest, so it might be a bit easier.

-Jim

Bowen1911 wrote:blanks are really quiet.


If you want to avoid the sonic crack, shoot straight up in the air. it has nothing to reflect off of, and therefore you can't hear it.

It's generally a bad idea to shoot a live projectile when you don't know where it is going to land.

Hi kingjamez. I fully agree with you. I’m not a professional machinists but Gwizard helps me a LOT when designing. Why ? It’s calculators ... BUT, once you design a Suppressor; there is no better way to test than MasterCam X4: There you can virtually see if ... You CAN do it ! Best, Paul Yeah.... l...

AMH is a great book. For me though, I've replaced most of what I used it for with GWizard. Way easier to get the answers I'm looking for.

-Jim

Complex != Better. Pretty != Better. Hard to machine != Better. Unique != Better. What does == better? Design that accomplishes a goal. In the case of silencers, disrupting expanding gas. That's all there is to it. Kiwi: Don't get me wrong, I'm not at all saying that your design won't work well. I w...

For me it's not a matter of wear, it's a matter of being destroyed when I cross thread it. 7075 is great, but is deforms easily and in my experience does not hold up well when I use it in a fine thread. Like Bowen said 304 machines fine, and even I have a hard time hurting fine threads of stainless....