Search found 70 matches

by wp6529
Wed Nov 12, 2014 10:31 am
Forum: Silencersmithing Forum
Topic: Golf ball dimpling/fluting with drill press?
Replies: 6
Views: 1232

Re: Golf ball dimpling/fluting with drill press?

It sounds like a job for a CNC mill with 4th axis, not a manual drill press if you want to keep what's left of your sanity. A $500 Harbor Freight mini mill (Seig X2, HF #44991) is a big step up from a drill press and will give you the side load capability for fluting when used with proper R8 collets...
by wp6529
Wed Nov 12, 2014 12:36 am
Forum: Silencersmithing Forum
Topic: Coolant system for hobby lathe
Replies: 4
Views: 1206

Re: Coolant system for hobby lathe

The green stuff is mostly intended as a mist coolant sprayed with air, but it does say it can also be used as a flood coolant. They also list some synthetic flood type coolant on the LMS site as well. You can also find many options on the Enco site. If you at some point want to upgrade to pressure c...
by wp6529
Thu Oct 23, 2014 1:57 pm
Forum: Silencersmithing Forum
Topic: Anodizing at home?
Replies: 9
Views: 2079

Re: Anodizing at home?

Type II and type III anodize are equally hard as both build an aluminum oxide layer. Type III has a smaller pore size and is thus denser, but not harder, and it is also a thinker layer.
by wp6529
Mon Oct 13, 2014 9:36 am
Forum: Silencersmithing Forum
Topic: Lathe/Mill Talk
Replies: 7
Views: 1143

Re: Lathe/Mill Talk

The main thing I would change is shop space as my shop is seriously overcrowded. I am working towards that goal though and hope to move to a new location with a new 3,750sf shop building in the next year or so (current shop ~1,250sf). I have two manual Bridgeport mills (older and newer), two manual ...
by wp6529
Mon Oct 13, 2014 9:31 am
Forum: Silencersmithing Forum
Topic: Lathe tooling? HSS, Inserts and brazed carbide?
Replies: 16
Views: 1825

Re: Lathe tooling? HSS, Inserts and brazed carbide?

Once you get some holders and start using "real" insert tooling you'll tend to not use the brazed carbide tooling much, perhaps just for custom ground form tools. The inserts perform a lot better, particularly since most have chipbreaker profiles and they are supplied in a ready to run state vs. the...
by wp6529
Mon Oct 13, 2014 9:28 am
Forum: Silencersmithing Forum
Topic: bridgeport series 1 interact
Replies: 3
Views: 722

Re: bridgeport series 1 interact

That's going to be a pretty old control and pretty expensive to repair if/when it craps out. You can probably expect to run it for a while, but long term a conversion to something like LinuxCNC or Mach3 will be in order. Such a conversion will probably run around $250-750-ish depending on whether yo...
by wp6529
Fri Oct 10, 2014 12:17 pm
Forum: Silencersmithing Forum
Topic: NFA Marking question
Replies: 6
Views: 897

Re: NFA Marking question

It should be, another alternative is to simplify your trust name, like "JJJ Trust" Can you modify the trust name by addendum, like when you add a trustee? According to one of the attorney's that markets their services for "NFA" Trusts they said no, not after one item is approved on it. Most people ...
by wp6529
Thu Oct 09, 2014 10:19 pm
Forum: Silencersmithing Forum
Topic: Coolant system for hobby lathe
Replies: 4
Views: 1206

Re: Lube system for hobby lathe

Coolant system, a lube system normally refers to a system that oils the machine ways and whatnot rather than the part being cut. You can find real Loc-Line components at McMaster: http://www.mcmaster.com/#10095k11/=u30zur http://www.mcmaster.com/#10095k49/=u30zzg The mag base is a bit pricy, but it'...
by wp6529
Thu Oct 09, 2014 4:27 pm
Forum: Silencersmithing Forum
Topic: NFA Marking question
Replies: 6
Views: 897

NFA Marking question

Related to an SBR in this case, but generally applicable to any NFA marking. Is it ok to split the name of a trust onto two lines in order to allow the use of larger text? I read the specs in the ATF NFA doc and don't find any prohibition on splitting the name. i.e. J. J. Jones N.F.A. Trust Chicago,...
by wp6529
Fri Sep 19, 2014 9:41 am
Forum: Silencersmithing Forum
Topic: Determining thread dimensions?
Replies: 4
Views: 1097

Re: Determining thread dimensions?

Machinery's Handbook is the expensive but difinitive reference for damned near everything. There are tons of references for thread charts on the 'net though such as: http://en.wikipedia.org/wiki/Unified_Thread_Standard or http://www.engineersedge.com/screw_threads_chart.htm It's nice to stick to a s...
by wp6529
Sat Sep 06, 2014 9:57 pm
Forum: Silencersmithing Forum
Topic: QD idea I'm pondering...
Replies: 9
Views: 1153

Re: QD idea I'm pondering...

Ball-lock, the same basic design as used in air hose quick disconnects and some hydraulic QDs as well. Thinking more like the hydraulic ones where there are usually 6 or more balls for a stronger lockup. Any reason why this wouldn't be a good idea? It has been done US Patent 5,685,102 http://patent...
by wp6529
Sat Sep 06, 2014 6:42 pm
Forum: Silencersmithing Forum
Topic: QD idea I'm pondering...
Replies: 9
Views: 1153

QD idea I'm pondering...

Ball-lock, the same basic design as used in air hose quick disconnects and some hydraulic QDs as well. Thinking more like the hydraulic ones where there are usually 6 or more balls for a stronger lockup. Any reason why this wouldn't be a good idea?
by wp6529
Sat Sep 06, 2014 12:06 am
Forum: Silencersmithing Forum
Topic: grade 5 drilling question
Replies: 34
Views: 2821

Re: grade 5 drilling question

Lots of good docs, thank you!
by wp6529
Fri Sep 05, 2014 4:17 pm
Forum: Silencersmithing Forum
Topic: grade 5 drilling question
Replies: 34
Views: 2821

Re: grade 5 drilling question

4. Coolant pressure-fed drill bits, specified to work with Ti by the manufacturer, work the best and eliminate the need to peck. The Guhrrng RT100 VA, available from MSC for under $100, looked good to me and I could probably rig a low pressure coolant feed to it but, without high pressure, I suspec...
by wp6529
Fri Aug 29, 2014 9:19 am
Forum: Silencersmithing Forum
Topic: Bore for 308 muzzle brake/Compensator?
Replies: 12
Views: 3479

Re: Bore for 308 muzzle brake/Compensator?

If the adjustable reamer you used had a little setscrew in the tip, it was not a type that is adjustable in the way you were thinking. That type is only adjustable in the sense that the screw lets you expand it a bit so that it can be reground to the original size. The blade type adjustable reamers ...
by wp6529
Tue Aug 26, 2014 9:44 pm
Forum: Silencersmithing Forum
Topic: were you afraid to shoot your first form1 can ?
Replies: 9
Views: 1613

Re: were you afraid to shoot your first form1 can ?

This is why you make the first one .22LR
by wp6529
Tue Aug 26, 2014 2:51 pm
Forum: Silencersmithing Forum
Topic: Making your own Ferfrans style blast redirection device
Replies: 3
Views: 957

Re: Making your own Ferfrans style blast redirection device

Golf ball launcher? Ping pong ball launcher?
by wp6529
Sun Aug 24, 2014 10:40 pm
Forum: Silencersmithing Forum
Topic: Helicoil for mount threads?
Replies: 10
Views: 1799

Re: Helicoil for mount threads?

I was going to suggest solid thread inserts rather than the heli-coil type, but a quick search on McMaster seems to indicate that none of them are available with 1/2-28 as the inside threads.
by wp6529
Mon Aug 18, 2014 9:48 pm
Forum: Silencersmithing Forum
Topic: grade 5 drilling question
Replies: 34
Views: 2821

Re: grade 9 drilling question

Bendersquint, can you give us a quick rundown of tips and tricks for machining titanium? My upcoming F1 builds are going to be Ti, both gr.5 bar and gr.9 tube and I have both manual and CNC machines (nothing too big or new).
by wp6529
Sat Aug 16, 2014 10:55 pm
Forum: Silencersmithing Forum
Topic: 50 BMG form 1 finally arrived. Tested, works well.
Replies: 46
Views: 9768

Re: 50 BMG form 1 finally arrived. Making progress.

There seems to be a lack of fusion in the welding. I'd setup so you have something to rest your hand comfortably on and go at it again, also with more filler. Build it up a bit and then turn it down in the lathe to give a nice clean radius. You can weld in short sections opposite each other and let ...
by wp6529
Sat Aug 16, 2014 10:13 am
Forum: Silencersmithing Forum
Topic: Homeade heavy buffer
Replies: 9
Views: 1043

Re: Homeade heavy buffer

What did you do for the sliding weight stack "dead blow hammer" inside the buffer?
by wp6529
Fri Aug 08, 2014 6:17 am
Forum: Silencersmithing Forum
Topic: Metals sources?
Replies: 10
Views: 1966

Re: Metals sources?

I use onlinemetals.com, decent prices for small orders They sell Inconel? http://www.onlinemetals.com/merchant.cfm?id=873&step=2&top_cat=1352 States: NICKEL 718 (INCONEL EQUIV) ANNEALED ROUND Gunny McMaster is a bit cheaper and also has a 6" option for less. http://www.mcmaster.com/#nickel-rods/=t6...
by wp6529
Wed Aug 06, 2014 11:12 pm
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1630

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

The lovely SGS carbide end mills arrived and work wonderfully. I only had time for a short test today, but I should be able to complete the core tomorrow.
by wp6529
Sun Aug 03, 2014 1:54 pm
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1630

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

The biggest issue is the end mills I have at the moment. I only have HSS .1875" with more than .5" LOC, and the ones I have are more like .875" so not very rigid. They aren't performing well even at a measly .005" DOC per pass and .75 IPM. I will likely end up ordering up some carbide with .75 LOC t...
by wp6529
Sun Aug 03, 2014 11:08 am
Forum: Silencersmithing Forum
Topic: .22 LR can of 304SS wall thickness?
Replies: 15
Views: 1630

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

http://wpnet.us/Chambers2.jpg I don't know squat about edm or cnc but it you take this design and use thin baffles followed by wide baffles I think you may have a workable design.Start with 1/8 and progressively widen the baffle to .500 with a thin wall between. P.S. sorry a_canadian did not see yo...