Search found 99 matches

by BinaryAndy
Wed Sep 20, 2017 11:42 pm
Forum: Silencersmithing Forum
Topic: Why is no one using 416 Stainless Steel for a Monocore design.
Replies: 9
Views: 3549

Re: Why is no one using 416 Stainless Steel for a Monocore design.

416 would be a great material for a suppressor. Good yield strength, decent abrasion resistance, easy to machine. That's what they make stainless barrels out of, and those don't wear out any faster than barrels made of 4140, which is also an excellent material for suppressors. 410, which is 416 with...
by BinaryAndy
Fri May 19, 2017 2:41 am
Forum: Silencersmithing Forum
Topic: Design questions
Replies: 4
Views: 1198

Re: Design questions

Titanium can be heat treated, and that can increase the yield strength and toughness, but not nearly to the extent that it does in steel alloys. In my opinion it's not worth the effort for the small benefits. You can anodize titanium, very easily, with common household items. It will change colors d...
by BinaryAndy
Thu May 18, 2017 3:49 am
Forum: Silencersmithing Forum
Topic: Liberty/Gemtec booster threads
Replies: 5
Views: 2672

Re: Liberty/Gemtec booster threads

There is a ridiculously useful online thread calculator here: http://theoreticalmachinist.com/Threads_UnifiedImperial.aspx It will give you all of the dimensions and tolerances for threads of arbitrary diameter and pitch. It will even give you the min/max and wire size to use for measuring external ...
by BinaryAndy
Mon Feb 27, 2017 2:43 pm
Forum: Silencersmithing Forum
Topic: Final material choice help please
Replies: 17
Views: 1800

Re: Final material choice help please

BinaryAndy you have really caught my attention with the 4130,4140,4340. I was reading some of your testing with these materials and how their strength will allow for thinner construction thus equal or close to finished weight of a Ti can. however you did mention corrosion coatings. how critical is ...
by BinaryAndy
Fri Feb 24, 2017 2:42 am
Forum: Silencersmithing Forum
Topic: Final material choice help please
Replies: 17
Views: 1800

Re: Final material choice help please

partsguy22 wrote:I thought the galling issue was only an issue if the parts were the same alloy ?
It's a bigger issue if they're the same alloy, but it's always a significant issue with Ti-to-Ti threads, especially fine threads. There are surface treatments that mostly cure it.
by BinaryAndy
Thu Feb 23, 2017 9:29 pm
Forum: Silencersmithing Forum
Topic: Final material choice help please
Replies: 17
Views: 1800

Re: Final material choice help please

As Partsguy22 said, aluminum baffles or tubes and 5.56 SBR's don't mix well, for several reasons. The strength drops dramatically when it gets hot, much more quickly and at lower temperatures than steel or titanium. It's also susceptible to fatigue failure, and the combination of repetitive stress a...
by BinaryAndy
Sat Jan 07, 2017 4:41 pm
Forum: Silencersmithing Forum
Topic: Ks vs Radials
Replies: 12
Views: 4076

Re: Ks vs Radials

I have to disagree. A Parabola is both convex and concave, depending on which side of the curve you're referring (differentiable functions). But, I see where you are going, with your mention of Hyperbolas. Typically, these would be the result of a section through our solid feature. In this case, th...
by BinaryAndy
Fri Jan 06, 2017 5:29 pm
Forum: Silencersmithing Forum
Topic: Ks vs Radials
Replies: 12
Views: 4076

Re: Ks vs Radials

I think they're called radials simply because the cone is formed with a radius... makes sense They're actually a parabolic frustum. I've heard, many many times, that they're not called radials, but never once have I come upon the "industry" name for them.... bueller, bueller... They're not paraboli...
by BinaryAndy
Fri Jan 06, 2017 1:02 pm
Forum: Silencersmithing Forum
Topic: Ks vs Radials
Replies: 12
Views: 4076

Re: Ks vs Radials

There is certainly a difference, you're right. We need a better name for the "radial" baffle. It's really not radial at all. They used to be called frusto cones, but they're not frustoconical, and normal 60° cones are in fact frustoconical, so that's no good either.
by BinaryAndy
Thu Jan 05, 2017 1:58 pm
Forum: Silencersmithing Forum
Topic: CNC machine questions and 50 cal multi caliber silencer design suggestions
Replies: 27
Views: 4169

Re: CNC machine questions and 50 cal multi caliber silencer design suggestions

The CNC machine doesn't do much of anything automatically. There's a lot involved in the process. It usually takes quite a bit more time and more work to program, set up and machine a part than it does to create the solid model. I'm afraid you're very far off on your cost and time estimate.
by BinaryAndy
Wed Jan 04, 2017 7:48 pm
Forum: Silencersmithing Forum
Topic: Ks vs Radials
Replies: 12
Views: 4076

Re: Ks vs Radials

"Radials" (I just call them cones because they're basically cone-shaped and I don't see anything radial about them) are indeed easier to make than K's, especially with a CNC lathe. It's not an enormous difference, but it's significant enough. All things being equal, IMHO a good K baffle will usually...
by BinaryAndy
Tue Dec 20, 2016 11:39 am
Forum: Silencersmithing Forum
Topic: 300 blackout build complete
Replies: 57
Views: 27177

Re: 300 blackout build complete

Nice work, especially given that it was done on a Sherline.
by BinaryAndy
Wed Dec 14, 2016 6:03 pm
Forum: Silencersmithing Forum
Topic: lathe coolant systems
Replies: 24
Views: 2246

Re: lathe coolant systems

Aluminum NEEDS coolant (or a lot of WD40) Why do you say that? I know I'm not the only one that cuts aluminum dry Yeah, I guess I shouldn't have used such absolute terms; aluminum can be cut dry, but coolant makes everything work so much better that in my opinion it really ought to be considered ma...
by BinaryAndy
Wed Dec 14, 2016 4:27 pm
Forum: Silencersmithing Forum
Topic: New Baffle Design
Replies: 40
Views: 9031

Re: New Baffle Design

It's an easy enough cut to make. I don't see any reason it should work any better or worse than any other asymmetrical clipping geometry, although some clipping geometries do in fact work better than others and in most cases I have no idea why and could not have predicted the results. So I'm sure it...
by BinaryAndy
Tue Dec 13, 2016 6:51 pm
Forum: Silencersmithing Forum
Topic: New Baffle Design
Replies: 40
Views: 9031

Re: New Baffle Design

I think I get it. Take a normal cone, held pointy end up in a mill. Use a small end mill to cut a partial helix, by moving the center of the end mill in a partial circle around the perimeter of the baffle's bore in the XY plane, while simultaneously moving down in the Z axis. The result would be a n...
by BinaryAndy
Tue Dec 13, 2016 6:17 pm
Forum: Silencersmithing Forum
Topic: lathe coolant systems
Replies: 24
Views: 2246

Re: lathe coolant systems

I don't think a coolant system is going to be any help to you for cutting 17-4. With a big HSS multiflute countersink tool, you'd be better off with tapping oil and a very slow spindle speed. The way you're using that tool it has more in common with a barrel chamber reamer than anything else, so tha...
by BinaryAndy
Thu Dec 01, 2016 10:35 pm
Forum: Silencersmithing Forum
Topic: "Baffle" material?
Replies: 19
Views: 4490

Re: "Baffle" material?

Ultrasonic jewelry cleaners are $25 on amazon, so that's not a big deal. A jewelry cleaner isn't going to touch rimfire crud. I had an ultrasonic reloading brass cleaner that was a good deal larger and more powerful than a jewelry cleaner, but I stopped using it because it was taking too long to cl...
by BinaryAndy
Thu Dec 01, 2016 10:21 pm
Forum: Silencersmithing Forum
Topic: Buying a Lathe/Milling Machine
Replies: 4
Views: 1453

Re: Buying a Lathe/Milling Machine

I started on CNC, I'm self-taught, and I have no regrets about any of that. Granted I learned on the job on industrial machines, which may be a bit different from learning at home. There are pros and cons to each starting point. CNC is going to be really a lot more expensive to get into properly, an...
by BinaryAndy
Thu Dec 01, 2016 6:56 pm
Forum: Silencersmithing Forum
Topic: "Baffle" material?
Replies: 19
Views: 4490

Re: "Baffle" material?

Hey, this is actually a pretty neat idea, and I have a feeling it might * almost * work. I don't think I've ever seen the stuff in person, but the large-cell version reminds me of a hyper-complex and randomized, but not terrible, monocore design. Sure, there might be some cells that are mostly or en...
by BinaryAndy
Mon Sep 26, 2016 1:55 am
Forum: Silencersmithing Forum
Topic: .45 threaded bushing?
Replies: 3
Views: 534

Re: .45 threaded bushing?

A suppressor attached to the barrel bushing would cycle with the slide. With the slide all the way back, wouldn't the barrel be protruding from the end of that bushing? I'm going to assume your baffles have enough clearance that you can manually cycle the slide with the can attached, without the bar...
by BinaryAndy
Mon Sep 26, 2016 1:25 am
Forum: Silencersmithing Forum
Topic: how hard to suppress 9mm carbine?
Replies: 6
Views: 939

Re: how hard to suppress 9mm carbine?

You'd basically want to build a 9mm pistol can without a booster (or with a booster that can be disabled; then you could use it on pistols too). It probably won't be as quiet as a pistol, since some port noise is more or less inherent in the AR-15.
by BinaryAndy
Mon Sep 19, 2016 8:00 pm
Forum: Silencersmithing Forum
Topic: Thoughts on grade 2 Ti for spacers
Replies: 22
Views: 1251

Re: Thoughts on grade 2 Ti for spacers

Rich V wrote:
Bendersquint wrote:
Rich V wrote:I wish I could find some 17-4SS tubing but unless you want to buy a mill run it's not available.
What size do you need? I have a source.
Bendersquint
I sent you an IM
So did I.

I've been looking for a source for 17-4 tube for quite some time.
by BinaryAndy
Wed Sep 07, 2016 11:20 am
Forum: Silencersmithing Forum
Topic: Thoughts on grade 2 Ti for spacers
Replies: 22
Views: 1251

Re: Thoughts on grade 2 Ti for spacers

I'll second what Bender said; grade 2 Ti is weaker and heavier than 7075 Al. Its only advantage is corrosion resistance. Mostly useless in suppressors.
by BinaryAndy
Sun Aug 28, 2016 12:26 am
Forum: Silencersmithing Forum
Topic: Whats your go to measuring tool brand
Replies: 5
Views: 781

Re: Whats your go to measuring tool brand

Having used all of them, I would say Mitutoyo and B&S are very close in quality for mics and calipers, and Starret is actually noticeably worse, in a lot of ways. Mitutoyo is usually a good bit cheaper than the Swiss stuff, so that's what I generally choose. I am a lot more picky about my indicators...
by BinaryAndy
Tue Jul 26, 2016 12:30 pm
Forum: Silencersmithing Forum
Topic: On-line tooling sources?
Replies: 7
Views: 773

Re: On-line tooling sources?

http://latheinserts.com/ They don't have a whole lot of stuff on their site, but they can get just about anything. Their prices are really excellent for very good, industrial-level tooling. Tell them what you're doing and ask for a recommendation, they know tooling better than anyone.