Search found 22 matches

by airsix
Thu Feb 26, 2015 1:38 pm
Forum: Silencersmithing Forum
Topic: HELP turning titanium. Locking up.
Replies: 39
Views: 2463

Re: HELP turning titanium. Locking up.

L1A1Rocker wrote:This po-dunk little town never has what I need. I ordered some bearings from enco. . .

Enco has the crocus cloth too. :wink:
by airsix
Tue Feb 24, 2015 4:03 pm
Forum: Silencersmithing Forum
Topic: HELP turning titanium. Locking up.
Replies: 39
Views: 2463

Re: HELP turning titanium. Locking up.

Here are a couple of things I hope will help. 1) I think your rest fingers might be gripping into the work when you lock them down. Mine do this. If I adjust them to perfection and then lock them they are too tight after being locked. Turn the spindle by hand as you are making adjustments to the fin...
by airsix
Wed Feb 11, 2015 1:31 pm
Forum: Silencersmithing Forum
Topic: spacer thickness?
Replies: 4
Views: 1070

Re: spacer thickness?

I made 0.035" aluminum spacers for a freezeplug stack. 300aac subs
After only a few test rounds the stack became a little loose. Inspection revealed the edges of the spacers starting to mushroom.
by airsix
Fri Feb 06, 2015 2:14 pm
Forum: Silencersmithing Forum
Topic: SDTA DID IT...YHM ADAPTERS FOR FORM 1 Builders
Replies: 7
Views: 2192

Re: SDTA DID IT...YHM ADAPTERS FOR FORM 1 Builders

mhidpa wrote:As someone who has made a form 1 QD can using the YHM mount, I'd pay $40 for it instead of making another.

But.... I acquired a great education in the process of making mine. That's the story I keep telling myself. :lol:
by airsix
Mon Jan 12, 2015 10:52 am
Forum: Silencersmithing Forum
Topic: Griffin Taper Mount Comp Specs Inside
Replies: 9
Views: 7838

Re: Griffin Taper Mount Comp Specs Inside

What went wrong with your threading btw? When I bored the ID of the end-cap where it was to be threaded for the Griffin I used a cheap brazed import boring bar it flexed terribly and I ended up with a severely tapered hole. I spent a bit of money on propper boring and inside thread tooling and turn...
by airsix
Tue Jan 06, 2015 2:38 am
Forum: Silencersmithing Forum
Topic: Griffin Taper Mount Comp Specs Inside
Replies: 9
Views: 7838

Re: Griffin Taper Mount Comp Specs Inside

That sounds like a brilliant way to verify the taper. I never would have thought of that!
(I have no formal machinist training)
by airsix
Mon Jan 05, 2015 9:14 pm
Forum: Silencersmithing Forum
Topic: Griffin Taper Mount Comp Specs Inside
Replies: 9
Views: 7838

Re: Griffin Taper Mount Comp Specs Inside

Thanks for sharing this. Just this weekend I was fiddling with one trying to sort it out. I'm guessing you're right on the taper being 6 degrees. I used a crappy plastic gauge and got 7 degrees as my best guess. I trust your math more than my measurement (I'll turn a test piece and check it with hi-...
by airsix
Mon Dec 22, 2014 1:49 pm
Forum: Silencersmithing Forum
Topic: Can Titanium Tube be joined to Stainless Endcaps without threading?
Replies: 20
Views: 1681

Re: Can Titanium Tube be joined to Stainless Endcaps without threading?

Take heart. You can thread Ti on your lathe. Just this weekend I did my first threading. 303 end cap (final product) and Ti tube (test piece) done on my 7x14. Threading the actual suppressor tube will require using the steady-rest, which I did have to modify so it can swallow 1.5" OD tube, but it wa...
by airsix
Mon Dec 15, 2014 2:07 pm
Forum: Silencersmithing Forum
Topic: End-cap retention (prevent un-threading of cap from tube)
Replies: 2
Views: 712

End-cap retention (prevent un-threading of cap from tube)

My first form1 build is gathering steam and a concern is pecking at the back of my mind. I will be attaching the suppressor to a Griffin brake. If you are not familiar with it, it has 20tpi threads on it's OD and a tapered seating surface for suppressor mounting. My suppressor will be built with 1.5...
by airsix
Fri Jun 20, 2014 11:17 pm
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Re: Go or no-go lathe question

Scared_of_zombies wrote:
airsix wrote:Per FarmDadCO's tip, I milled out the slots in the steady rest fingers and it now easily holds 1.5" OD stock. Thanks!
What's your general location?
SE Washington state
by airsix
Wed Jun 18, 2014 1:35 pm
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Re: Go or no-go lathe question

Per FarmDadCO's tip, I milled out the slots in the steady rest fingers and it now easily holds 1.5" OD stock. Thanks!
by airsix
Wed Jun 04, 2014 2:40 pm
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Re: Go or no-go lathe question

I have one of the little 7x12 lathes . You can modify the rest " fingers " by extending the slots and get 1.5 in the rest without a problem . I don't know how the lathe would handle Ti though . The only thing i have threaded our on the end of the ways like that is Al and it worked ok for that . Thi...
by airsix
Wed Jun 04, 2014 12:04 am
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Re: Go or no-go lathe question

Follow-up:
I threw a piece of plastic pipe in the lathe tonight to see how this might work.
It's a no-go. My steady rest will only hold 1.3" stock.
by airsix
Tue Jun 03, 2014 7:31 pm
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Re: Go or no-go lathe question

Thanks for the input, guys. I've cut/drilled/tapped a lot of 6al/4v, so I know how challenging Ti can be to machine. (For a fun time, tap a bunch of 0-80 threads in 0.100" Ti plate) That's why I'm approaching this cautiously. I definitely enjoy seeing a tough problem solved though, so I'm still cons...
by airsix
Tue Jun 03, 2014 4:04 pm
Forum: Silencersmithing Forum
Topic: Go or no-go lathe question
Replies: 14
Views: 1100

Go or no-go lathe question

The good news: I have a form 1 and plans for my 300aac suppressor The bad news: My lathe is a 7x14 and I can't get a bigger one until I build a workshop. Do I attempt to single-point thread 1.5" OD GR9 titanium tube at the far-end of the bed while holding it in a steady-rest, or do I wait 2 years un...
by airsix
Sat Jan 25, 2014 1:52 pm
Forum: Silencersmithing Forum
Topic: Cool projects that you have done.
Replies: 78
Views: 10841

Re: Cool projects that you have done.

I'm still an engineering and fabrication hobby neophyte (I work in business). Sometimes I make this http://i205.photobucket.com/albums/bb169/airsix_photo/Mikes-Knife/IMGP5807Medium.jpg Out of this: http://i205.photobucket.com/albums/bb169/airsix_photo/Mikes-Knife/knifes008Medium.jpg The blade pivot ...
by airsix
Wed Dec 18, 2013 1:38 pm
Forum: Silencersmithing Forum
Topic: Materials Selection question
Replies: 43
Views: 2113

Re: Materials Selection question

Bendersquint wrote:
airsix wrote:TypeIII would be great, but in my garage I can only do TypeII. But I do it well. :D
Doesn't mean you can't send it out to be anodized.

Now where's the fun in that? :D
by airsix
Tue Dec 17, 2013 8:06 pm
Forum: Silencersmithing Forum
Topic: Materials Selection question
Replies: 43
Views: 2113

Re: Materials Selection question

TypeIII would be great, but in my garage I can only do TypeII. But I do it well. :D
by airsix
Tue Dec 17, 2013 3:31 pm
Forum: Silencersmithing Forum
Topic: Materials Selection question
Replies: 43
Views: 2113

Re: Materials Selection question

Thanks guys! To keep the discussion going... I do intend to shoot subs almost exclusively. If I stuck to subs and used a good stainless blast baffle, what would you expect the round-count life of 7075 K-baffles to be (type-2 anodized). I thought I had read that some of the commercial cans are using ...
by airsix
Mon Dec 16, 2013 8:51 pm
Forum: Silencersmithing Forum
Topic: Materials Selection question
Replies: 43
Views: 2113

Re: Materials Selection question

My little mini-lathe just can't handle steel very well at all unless very small diameter. If aluminum is a poor choice I'd probably be better off press-forming freeze plugs. :(
by airsix
Mon Dec 16, 2013 2:49 pm
Forum: Silencersmithing Forum
Topic: Materials Selection question
Replies: 43
Views: 2113

Materials Selection question

Hello! Great forum. It's been great digging through all the posts here learning what I can. While I sit waiting for the return of the Form 1 for my first NFA project I had some questions about materials I'm hoping you'll educate me about. I will be building a .30cal can for an AR pistol (with a Sig ...