Search found 373 matches

by yondering
Wed May 02, 2018 1:04 am
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4136

Re: Endcap thread length?

You still want to file or stone the burrs off the thread crests, regardless how clean the thread looks. Otherwise the burrs can make the thread feel tighter than it really is. If you're not cutting at CNC speeds, you should assume you've always got burrs at the thread crests, even if they're minor.
by yondering
Thu Apr 26, 2018 10:00 pm
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4136

Re: Endcap thread length?

I use carbide for turning, and yes I have a bunch of inserts missing chips so I hear ya. ECCO, the tool you listed seems to be a 1" shank. I have an AXA toolpost, max clamping is about 1/2" so maybe something like this would be better... http://www.shars.com/products/indexable-cutting/threading-hol...
by yondering
Mon Apr 23, 2018 11:41 pm
Forum: Silencersmithing Forum
Topic: Endcap thread length?
Replies: 29
Views: 4136

Re: Endcap thread length?

Sounds like you figured it out; I was just about to ask if this was for rimfire or centerfire.

My rule of thumb has always been .400-.420" for 22lr threads, and .600-.620" for 5.56 and other appropriate centerfire calibers.
by yondering
Mon Apr 23, 2018 1:31 am
Forum: Silencersmithing Forum
Topic: Brake with integrated cone?
Replies: 8
Views: 2069

Re: Brake with integrated cone?

As Form 1 builders, we don't have the same constraints. We can absolutely do better than mass-produced designs. Hmm. We don't have the same constraints, but in many ways we have more. Product development (i.e. build - revise - build again) is a huge difference between form 1 guys and manufacturers,...
by yondering
Sat Mar 31, 2018 12:02 am
Forum: Silencersmithing Forum
Topic: 460 rowland suppressed - mac10 clone DIY delayed blowback
Replies: 63
Views: 8285

Re: 460 rowland suppressed - mac10 clone DIY delayed blowback

Wow, that really is ridiculous. You've displayed that you know next to nothing about the things you're wanting to do, but apparently have no idea how little you know since you want to argue about any help you're offered. I think I'm done here too.
by yondering
Fri Mar 30, 2018 3:21 pm
Forum: Silencersmithing Forum
Topic: 460 rowland suppressed - mac10 clone DIY delayed blowback
Replies: 63
Views: 8285

Re: 460 rowland suppressed - mac10 clone DIY delayed blowback

No, it's not already "very hard" in annealed condition. In fact, it's not even "very hard" in fully hardened condition, although it is a very strong alloy. It only gets up to ~42-44 Rc at max hardness (H900 condition) which is relatively mild hardness when compared to many other steels. For perspect...
by yondering
Thu Mar 08, 2018 11:13 pm
Forum: Silencersmithing Forum
Topic: Rethinking 460 Rowland suppressed
Replies: 21
Views: 4066

Re: Rethinking 460 Rowland suppressed

As mentioned by others, I can use a much Stouter booster spring to have more acting mass to delay the side unlock. I have an ar10 17-7 stainless recoil spring and I think that will definitely work. Resistant to corrosion Very stout and i can get a lot of Coils In And also heat resistant. I don't th...
by yondering
Sun Mar 04, 2018 4:48 am
Forum: Silencersmithing Forum
Topic: Rethinking 460 Rowland suppressed
Replies: 21
Views: 4066

Re: Rethinking 460 Rowland suppressed

ECCO, that is completely false about muzzle brakes. They absolutely do delay slide unlocking, and in fact a good brake is the only way to safely push that kind of power level out of a Glock. Watch some slo-mo video, you'll see the bullet leave the barrel and the gas acting on the brake before the s...
by yondering
Sat Mar 03, 2018 8:41 pm
Forum: Silencersmithing Forum
Topic: Rethinking 460 Rowland suppressed
Replies: 21
Views: 4066

Re: Rethinking 460 Rowland suppressed

Dang that's pretty heavy with the booster, I'm sure you'll need some sort of spring to cycle that. McMaster has a good selection of springs. Along with length and diameter of the spring, you need to pay attention to wire diameter and number of coils. Larger diameter wire or fewer coils = higher spri...
by yondering
Sat Mar 03, 2018 4:37 pm
Forum: Silencersmithing Forum
Topic: Rethinking 460 Rowland suppressed
Replies: 21
Views: 4066

Re: Rethinking 460 Rowland suppressed

ECCO, that is completely false about muzzle brakes. They absolutely do delay slide unlocking, and in fact a good brake is the only way to safely push that kind of power level out of a Glock. Watch some slo-mo video, you'll see the bullet leave the barrel and the gas acting on the brake before the sl...
by yondering
Sat Feb 03, 2018 11:38 pm
Forum: Silencersmithing Forum
Topic: Math for making baffle on lathe, help please
Replies: 7
Views: 1946

Re: Math for making baffle on lathe, help please

There are lots of machinist apps for smartphones that do the trig for you. "Machine It" is one I use, but there are lots of them.
by yondering
Wed Jan 10, 2018 12:13 am
Forum: Silencersmithing Forum
Topic: 300 blackout suppressor help
Replies: 11
Views: 2894

Re: 300 blackout suppressor help

I can't answer definitively, but am pretty sure the answer to that question depends whether you want to optimize the can for supers or subs?
by yondering
Fri Jan 05, 2018 11:43 pm
Forum: Silencersmithing Forum
Topic: Is it possible to clip a cone without a lathe or mill?
Replies: 6
Views: 1746

Re: Is it possible to clip a cone without a lathe or mill?

Clipping cones can be as simple as a chainsaw file by hand. I'm not sure why you'd try to use a drill press, and a lathe isn't what you want either unless you have a milling attachment. As mentioned, a dremel or die grinder is an easy way to do it as well, but frankly if you have to ask the question...
by yondering
Thu Dec 28, 2017 10:34 pm
Forum: Silencersmithing Forum
Topic: order of operations 60* cones?
Replies: 22
Views: 4451

Re: order of operations 60* cones?

As to the rest of it, T-Rex covered the process well. And yes, dress those brazed carbide boring bars; a diamond lap is a must if you own a set of those. They can leave great finishes though if dressed right. You've almost got it. Don't push the taper all the way in. You want a little snout on the ...
by yondering
Sat Dec 02, 2017 12:38 am
Forum: Silencersmithing Forum
Topic: Which taper for suppressor mount to brake?
Replies: 29
Views: 4058

Re: Which taper for suppressor mount to brake?

I went with 20* included; seems to work fine. I forget what Propeine used, maybe he was the one measuring the Griffin comp.

I think I remember someone else uses 25* included. Sig?

At some point the taper becomes self locking, so you may not want to go much smaller than 12*.
by yondering
Thu Nov 23, 2017 4:28 pm
Forum: Silencersmithing Forum
Topic: Need nonstandard thread protector
Replies: 25
Views: 3845

Re: Need nonstandard thread protector

There are a bunch of us here that could do it. At least a couple of us quit offering to help when the OP was being an impatient dick.
by yondering
Thu Nov 16, 2017 1:17 am
Forum: Silencersmithing Forum
Topic: order of operations 60* cones?
Replies: 22
Views: 4451

Re: order of operations 60* cones?

A few good threads, from my bookmarks. Some good info in there, but lots of bad info too; tread with caution. #3 for example has a nice picture showing the relief angle, but his sharpening method is crap. Don't do that to your cutting tools. I guess I need to ask 'how' to dress the edges. I use one...
by yondering
Wed Nov 15, 2017 8:43 pm
Forum: Silencersmithing Forum
Topic: order of operations 60* cones?
Replies: 22
Views: 4451

Re: order of operations 60* cones?

I would suggest omitting the reaming operation but instead, bore the hole after parting the cone to achieve a "better-centered" hole. FWIW No, bore the hole before parting, not after. Drill undersized and bore to final dimensions if you want it perfect, otherwise just drill and ream if desired. Bor...
by yondering
Thu Nov 09, 2017 1:44 am
Forum: Silencersmithing Forum
Topic: Dealing with lathe taper
Replies: 7
Views: 1818

Re: Dealing with lathe taper

Sounds to me like you should spend some time figuring out the cause of the taper and fix that. "Lathe is old and worn" doesn't get you anywhere; figure out what is worn and what you can do about it. For example, sometimes the tailstock will become worn, especially on the side closer to the chuck so ...
by yondering
Wed Nov 08, 2017 12:30 am
Forum: Silencersmithing Forum
Topic: Consensus on bore diameter for 308/7.62x51 build
Replies: 18
Views: 5546

Re: Consensus on bore diameter for 308/7.62x51 build

A couple points here: - Just guessing from your posts, it sounds like you're drilling baffles by hand or in a drill press, not boring on a lathe, meaning concentricity is unknown and probably not great. - Non-concentric bore holes need to be larger than concentric holes to maintain accuracy. 3/8" is...
by yondering
Sun Oct 01, 2017 10:13 pm
Forum: Silencersmithing Forum
Topic: ..
Replies: 13
Views: 2026

Re: progressive bore

Rusty - do you clock your baffles so the clips are aligned, 90 deg apart, or ?? Have you experiemented with different clocking with your DHC, and does it matter? Seems like with the blast pattern mentioned in the posts above, clocking consecutive baffles 90* apart would be the way to go, but I haven...
by yondering
Fri Sep 29, 2017 9:25 pm
Forum: Silencersmithing Forum
Topic: See through silencer w/slow motion silencer testing
Replies: 28
Views: 4096

Re: See through silencer w/slow motion silencer testing

What propeine said. I encountered the same claim from a commercial suppressor company last year (I forget the name, but they claimed they are the only one certified for use on the Tavor X95, that might narrow it down). They claimed "no poi shift", and when questioned, repeated "none at all, ever". I...
by yondering
Tue Aug 29, 2017 2:32 am
Forum: Silencersmithing Forum
Topic: thread pitch
Replies: 12
Views: 2106

Re: thread pitch

Any reason not to use a square thread or acme? Noob here just wondering. Yes, plenty of reason. 60* V threads are standard for most fasteners and other threaded connections. They're easier to cut and can use the same single point tool for a wide range of thread pitches. They're also self centering,...
by yondering
Wed Aug 23, 2017 8:43 pm
Forum: Silencersmithing Forum
Topic: Drilling Misshap
Replies: 55
Views: 9150

Re: Drilling Misshap

T-Rex wrote:This is my Drill Dr :lol:
I sharpen mine by hand on the bench grinder too, although I don't even have one of those guides. I'm good down to ~3/16", smaller than that gets tricky for me to sharpen by hand.
by yondering
Mon Aug 14, 2017 11:36 pm
Forum: Silencersmithing Forum
Topic: Drilling Misshap
Replies: 55
Views: 9150

Re: Drilling Misshap

Assuming those are stainless steel? Do you know what alloy? Most likely those colored areas are work hardened and you're going to have trouble drilling them out without a lathe and carbide tooling. Obviously they were drilled way too fast, and without enough feed pressure. Most of the common cheap d...