Search found 70 matches

by wp6529
Sun Aug 03, 2014 10:40 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

Re: .22 LR can of 304SS wall thickness?

It's going to be CNC milled, so "easy" only applies to the CAD/CAM work. Mostly it's an issue of space in a 1.050" dia core, and available tooling. The previous design could be milled from one side with a .25" x 1.25" LOC EM, this new design below (obviously copied from one of the completed builds) ...
by wp6529
Sun Aug 03, 2014 8:53 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

Re: .22 LR can of 304SS wall thickness?

Remember this is a small dia .22 core, there isn't a lot of room for anything fancy. I've looked at various completed builds and the fancier ones would be a bit difficult to fit in the available space. Do you have any specific examples I should look at? I've gone through a number of the completed bu...
by wp6529
Sun Aug 03, 2014 8:36 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

Re: .22 LR can of 304SS monocore chamber design?

Any critiques soon please, I'm having my morning coffee and after that it's out to the shop where I have the mill setup for the chambers. Last chance to suggest any changes to the design.
by wp6529
Sat Aug 02, 2014 7:22 pm
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

Re: .22 LR can of 304SS wall thickness?

Critique my simplistic baffle / chamber design before I mill it. Again this is a monocore with a 1.050 core OD for .22.

Image
by wp6529
Thu Jul 31, 2014 10:38 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

Re: .22 LR can of 304SS wall thickness?

So 0.050" wall thickness? It's already mostly built, it's just a question of turning it down a final amount overall to reduce wall thickness and weight. It's a monocore, so no individual baffles. Still working on the design for the chambers for the CNC milling as I finish up the manual lathe work.
by wp6529
Thu Jul 31, 2014 9:17 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1749

.22 LR can of 304SS wall thickness?

I'm working on my first form 1 project, a 6" OAL .22 LR monocore can of 304SS (all made from bar) and am wondering what wall thickness is appropriate for the tube? It's ~1.25" OD at about 0.095" wall currently but I expect that's way more than is necessary and is adding needless weight (this will mo...
by wp6529
Tue Jul 29, 2014 8:13 pm
Forum: Silencersmithing Forum
Topic: Ukrainian weapons and silencers not only Eastern block
Replies: 6
Views: 1236

Re: Ukrainian weapons and silencers not only Eastern block

+1 for his finger being outside the trigger guard though.
by wp6529
Mon Jul 21, 2014 3:35 pm
Forum: Silencersmithing Forum
Topic: Metals sources?
Replies: 10
Views: 2213

Re: Metals sources?

john.t.little1 wrote:eBay
Plenty of titanium, little to no inconel to be found there.
by wp6529
Mon Jul 21, 2014 1:38 pm
Forum: Silencersmithing Forum
Topic: Metals sources?
Replies: 10
Views: 2213

Metals sources?

In particular Inconel sources. It seems there are plenty of sources for titanium drops, as well as new material, but Inconel seems to be more difficult to find cheaper sources for.
by wp6529
Wed Jul 02, 2014 12:14 pm
Forum: Silencersmithing Forum
Topic: Broke another parting blade! Will this damage my lathe?
Replies: 11
Views: 1193

Re: Broke another parting blade! Will this damage my lathe?

I'm a fan of threading from the rear *with the lathe in reverse*. The cutting forces are still downward towards the ways, but it lets you thread away from shoulders for an easier process. Of course don't do this on a lathe that uses a thread on chuck mount. On parting with a tailstock center, I'll a...
by wp6529
Tue Jul 01, 2014 9:25 am
Forum: Silencersmithing Forum
Topic: Broke another parting blade! Will this damage my lathe?
Replies: 11
Views: 1193

Re: Broke another parting blade! Will this damage my lathe?

AXA size toolpost is a bit small for a 12" lathe, a BXA size would probably be more appropriate. I use BXA on my 12x36 and 13x40 lathes.
by wp6529
Thu Jun 26, 2014 10:04 am
Forum: Silencersmithing Forum
Topic: Suppressor finishes question
Replies: 6
Views: 1693

Re: Suppressor finishes question

From the Plasti-Dip site: "temperatures from -30°F to 200°F."

I'm not a supressor expert, but I'm pretty sure temps will get well over 200F in short order, so Plasti-Dip is probably not suitable.
by wp6529
Tue Jun 24, 2014 1:40 pm
Forum: Silencersmithing Forum
Topic: Anybody done a form 1 using the new online eforms service???
Replies: 48
Views: 9932

Re: Anybody done a form 1 using the new online eforms servic

A new email from ATF just arrived a few minutes ago which indicates they have made some performance improvements to eForms and have added form 1 back to the system.
by wp6529
Tue Jun 24, 2014 10:03 am
Forum: Silencersmithing Forum
Topic: 3-D Printing WSJ 18 June 2014
Replies: 13
Views: 1790

Re: 3-D Printing WSJ 18 June 2014

My shop budget is a wee bit smaller, my used Lagunmatic 320 CNC mill cost me a whole lot less. I'm still a bit nervous leaving it unatended, but I have once or twice while it was in a long section of consistent code such as drilling holes for a dividing head plate I was missing. Biggest risk there w...
by wp6529
Mon Jun 23, 2014 6:31 pm
Forum: Silencersmithing Forum
Topic: Anybody done a form 1 using the new online eforms service???
Replies: 48
Views: 9932

Re: Anybody done a form 1 using the new online eforms servic

I did everything online, uploading my trust docs and whatnot. Personally, if I were needing to file at the moment I'd mail it, but as soon as eForms had form 1s again I'd do it online. You could then cancel whichever one took longer, or just keep the second approved form in the safe for a future bui...
by wp6529
Mon Jun 23, 2014 4:47 pm
Forum: Silencersmithing Forum
Topic: Anybody done a form 1 using the new online eforms service???
Replies: 48
Views: 9932

Re: Anybody done a form 1 using the new online eforms servic

Read the letter and the linked letter on the eForms page. They removed some of the forms temporarily while they work to upgrade system capacity. Once they have more capacity they indicate they will be adding form 1s and others back. Meanwhile they are processing form 1s that were submitted previousl...
by wp6529
Mon Jun 23, 2014 2:06 pm
Forum: Silencersmithing Forum
Topic: 3-D Printing WSJ 18 June 2014
Replies: 13
Views: 1790

Re: 3-D Printing WSJ 18 June 2014

Certainly a 3D printer can overcome the inherent inefficiencies in a commercial environment as you noted. In the home shop environment where I am the designer, CNC programmer, machinist, etc. and it's a short stroll from the CAD system in the home office out to the shop with the CNC mill the efficie...
by wp6529
Sun Jun 22, 2014 10:13 am
Forum: Silencersmithing Forum
Topic: 3-D Printing WSJ 18 June 2014
Replies: 13
Views: 1790

Re: 3-D Printing WSJ 18 June 2014

For prototyping parts that will ultimately be made in metal, we have long used machinable wax to test CNC code in place on the actual machines that will produce the finished part. Minimal wear on the cutters, and you can crank up the speeds and feeds thus having the completed test piece in far less ...
by wp6529
Wed Jun 18, 2014 10:56 am
Forum: Silencersmithing Forum
Topic: 3-D Printing WSJ 18 June 2014
Replies: 13
Views: 1790

Re: 3-D Printing WSJ 18 June 2014

Having a pretty well equipped home shop I haven't been too excited by the 3D printing hype. Using a 3D printer to produce cores for lost wax casting of "real" parts is the only thing that seemed useful to me. Perhaps at some point I'll embark on that project.
by wp6529
Mon Jun 16, 2014 12:27 pm
Forum: Silencersmithing Forum
Topic: Boring tool recommendations?
Replies: 5
Views: 711

Re: Boring tool recommendations?

Consider ME Consultant: http://closetolerancesoftware.com/ It's very handy for calculating feeds and speeds for various materials and tooling, HP requirements for a particular cut, etc. Also look carefully at your g-code (how are you generating it?), it's pretty easy to have a small mistake in the c...
by wp6529
Fri Jun 13, 2014 11:51 am
Forum: Silencersmithing Forum
Topic: AOW
Replies: 34
Views: 4146

Re: AOW

Adapt Ruger 10/22 design, use their compact rotary mag, integral supressor?
by wp6529
Fri Jun 13, 2014 10:16 am
Forum: Silencersmithing Forum
Topic: threading titanium tube for endcaps
Replies: 26
Views: 4060

Re: threading titanium tube for endcaps

Many thread mill vendors have free g-code generator programs that are preferred over canned cycles. Canned cycles tend not to have the lead-in and lead-out features that the thread mill vendors want you to use. One example of such software: http://carmex.com/ http://212.143.213.130/Download/Carmex_T...
by wp6529
Wed Jun 11, 2014 9:48 pm
Forum: Silencer Talk
Topic: Getting back in the game... a few questions though!
Replies: 4
Views: 381

Re: Getting back in the game... a few questions though!

Form 1s I eFiled in mid Feb have started going approved today (receiving email indicating approval and including a pdf of the approved form).
by wp6529
Wed Jun 11, 2014 12:04 pm
Forum: Silencer Talk
Topic: ATF Working on weekends?
Replies: 8
Views: 1236

Re: ATF Working on weekends?

Today I have started receiving eforms emails for my pending form 1s indicating they have been approved and including pdf scans of the approved forms. I submitted a batch of eForm 1s back mid Feb, so just about 4 months in processing. If you go to the eForms site, there is a message on the main scree...
by wp6529
Wed May 21, 2014 3:15 pm
Forum: Silencersmithing Forum
Topic: Walther PPX M1 SD thread spec...
Replies: 6
Views: 1136

Re: Walther PPX M1 SD thread spec...

Bendersquint wrote:
wp6529 wrote:
Bendersquint wrote:Took me about 2 minutes.
My Altavista-Fu seems to be failing me :(
Thats because you should be using Google-Fu.
I tried and failed there as well :cry: