Search found 144 matches

by partsguy22
Thu Apr 04, 2019 10:04 pm
Forum: Silencersmithing Forum
Topic: New to the trade, did some reading and have some questions
Replies: 8
Views: 940

Re: New to the trade, did some reading and have some questions

Welcome 1)something something expanding gasses, open chamber something something temp drop...yeah someone with more knowledge than me can probably explain it better 2) No... there are to many variables depending on baffle design , suppressor volume , barrel length of the host , amount of gas (depend...
by partsguy22
Tue Feb 05, 2019 8:07 pm
Forum: Silencersmithing Forum
Topic: Machining a booster
Replies: 17
Views: 1926

Re: Machining a booster

I mount my end mills with the above 2MT holder in lathe spindle. DO NOT hold end mill with 3 or 4 jaw chuck ... at best it will slip, at worse ...gasp. :) ... Fun 'beating the system'. Best. I agree however my lathe has a 6mt spindle So I use an er40 collet chuck I have also used a collet block hel...
by partsguy22
Tue Feb 05, 2019 6:15 pm
Forum: Silencersmithing Forum
Topic: Machining a booster
Replies: 17
Views: 1926

Re: Machining a booster

it depends on how much muchness you want but

a 500w spindle can be had for less than $100
a 1.5kw will run around $300
by partsguy22
Tue Feb 05, 2019 5:40 pm
Forum: Silencersmithing Forum
Topic: Machining a booster
Replies: 17
Views: 1926

Re: Machining a booster

Creative work holding

hold the work on the cross slide and end mill in the chuck and just like that its a horizontal mill

ETA

or you can adopt an inexpensive CNC spindle to use as live tooling

or even use it to broach splines
by partsguy22
Sat Feb 02, 2019 9:44 pm
Forum: Silencersmithing Forum
Topic: Anyone tried the Ti tubing on Ebay from China
Replies: 5
Views: 1755

Re: Anyone tried the Ti tubing on Ebay from China

I bought some to use as space material for my 9mm can
Its holding up fine and for much less than anywhere else I could find...
There is also a guy/company selling drop or off cuts from Israel that is gtg
by partsguy22
Wed Dec 19, 2018 6:21 pm
Forum: Silencersmithing Forum
Topic: Recommend some carbide tools
Replies: 22
Views: 1816

Re: Recommend some carbide tools

I'm sure he ment hole depth not thread depth
by partsguy22
Thu Sep 06, 2018 11:33 pm
Forum: Silencersmithing Forum
Topic: Selling a Lathe
Replies: 10
Views: 3405

Re: Selling a Lathe

After much thought I did something completely different I brought the Southbend from the shop it will now live in my garage at home It is with a heavy heart I also said good by to my Clausing In the last 6 months I have spent more tim working on it than using it or so it seems plus for what I use it...
by partsguy22
Fri Mar 23, 2018 11:31 pm
Forum: Silencersmithing Forum
Topic: Selling a Lathe
Replies: 10
Views: 3405

Re: Selling a Lathe

Your Rahn sounds like my Clausing We've been in the same shop since 1979 ...7 years before i was even thought of, we just really dont have the room The deal that introduced the new lathe also added a small mill (Grizzly G0463) another blast cabinet (24x48) and another air compressor (60g 5hp vertica...
by partsguy22
Fri Mar 23, 2018 4:54 pm
Forum: Silencersmithing Forum
Topic: Selling a Lathe
Replies: 10
Views: 3405

Selling a Lathe

Ive come upon a 3rd lathe and only have room for 2 the question is which ones to keep and which to sell The 1964 Clausing 14X40 VFD retrofitted is going to stay the two I've got to choose between 1964-65 South Bend 10K (12 speed,flat belt, rear drive, quick change gear box, 36" bed and a partial set...
by partsguy22
Fri Mar 23, 2018 4:37 pm
Forum: Silencersmithing Forum
Topic: Reverse two stage
Replies: 18
Views: 3334

Re: Reverse two stage

If I were to build it like that I'd build it like the .30 can I built with the bar stock rear end, one piece rear cap and first 4" of tube then threaded for the 2" O.D. main body

Image
by partsguy22
Thu Feb 15, 2018 3:47 pm
Forum: Silencersmithing Forum
Topic: NASA 398 Aluminum
Replies: 4
Views: 1556

Re: NASA 398 Aluminum

7068-T6511 is very strong, like 103,000 psi tensile strength strong, as in stronger than unhardened 4130
by partsguy22
Mon Feb 12, 2018 9:07 pm
Forum: Silencersmithing Forum
Topic: Trepanning sucks but this tool makes it easy!
Replies: 13
Views: 2767

Re: Trepanning sucks but this tool makes it easy!

What I was getting at , "amateurs" usually arn't conserned with speed as they are cost of tooling
with an annular cutter you get exactly one groove width and profile
a ground tool however much slower it may be is more flexable
by partsguy22
Sun Feb 11, 2018 10:41 pm
Forum: Silencersmithing Forum
Topic: Trepanning sucks but this tool makes it easy!
Replies: 13
Views: 2767

Re: Trepanning sucks but this tool makes it easy!

annular cutters work very well however split round hss or carbide blanks can be ground in just a few seconds and are many times more versatile (ie more diameters from the same tool ) edit : to grind tool simply grind off half of the split portion so you are left with a 1/4 pie shaped piece (with jus...
by partsguy22
Fri Jan 05, 2018 10:25 pm
Forum: Silencersmithing Forum
Topic: Is it possible to clip a cone without a lathe or mill?
Replies: 6
Views: 2103

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

careful application of a dremel or die grinder can work as well

for that matter a round file can get the job done
by partsguy22
Sat Dec 02, 2017 10:44 pm
Forum: Silencersmithing Forum
Topic: Which taper for suppressor mount to brake?
Replies: 29
Views: 4700

Re: Which taper for suppressor mount to brake?

I think for my level of ability single thread is the way to go. Something maybe 16 to 20 threads per inch. On the drawing posted above it shows 375 as the length of the threaded section is that enough? If you can cut single point threads you can do acme and with a couple minuets of practice multi s...
by partsguy22
Wed Nov 29, 2017 10:40 pm
Forum: Silencersmithing Forum
Topic: What equipment are you guys using to make monocores?
Replies: 10
Views: 3300

Re: What equipment are you guys using to make monocores?

Waterjet ?
If the round profile cant be delt with maybe water jet it as a square piece of barstock the turn to diameter...as a plus ot would be easy to make a can an offset bore ala the SiCo Osprey or DeLisle.
by partsguy22
Tue Nov 14, 2017 7:06 pm
Forum: Silencersmithing Forum
Topic: 422 SS for Baffles?
Replies: 12
Views: 2346

Re: 422 SS for Baffles?

Of those not the 316 its by far the softest and I have no experience with the other two but the data sheet on 422 looks promising
Any reason you are ruling out 17-4PH ?
by partsguy22
Tue Nov 14, 2017 10:28 am
Forum: Silencersmithing Forum
Topic: Using a Ultrasonic cleaners for baffles.
Replies: 2
Views: 1168

Re: Using a Ultrasonic cleaners for baffles.

I've had no luck with ultrasonic for cleaning baffles I either run them thru my pin tumbler or bead blast them
by partsguy22
Tue Nov 14, 2017 10:16 am
Forum: Silencersmithing Forum
Topic: Partsguys mostly Ti two piece tube .30 can
Replies: 6
Views: 3304

Re: Partsguys mostly Ti two piece tube .30 can

I like it. How's back-pressure with the short bbl? This gun has an adjustable gas-block and the gas isn't noticeable in part to the huge blast chamber 2nd pick in OP. What is the part in middle row all the way to the left? Tool? its... a... erm... blast chamber spacer?... baffle?..divider yeah that...
by partsguy22
Mon Nov 13, 2017 11:52 pm
Forum: Silencersmithing Forum
Topic: Partsguys mostly Ti two piece tube .30 can
Replies: 6
Views: 3304

Re: Partsguys mostly Ti two piece tube .30 can

A few more pics http://i446.photobucket.com/albums/qq189/partsguy22/20161201_141953%201_zps9iwpg5qj.jpg http://i446.photobucket.com/albums/qq189/partsguy22/Mobile%20Uploads/20171113_195514_zpsmslkcec0.jpg http://i446.photobucket.com/albums/qq189/partsguy22/Mobile%20Uploads/20171113_195801_zpsrstszva...
by partsguy22
Mon Nov 13, 2017 10:23 pm
Forum: Silencersmithing Forum
Topic: Partsguys mostly Ti two piece tube .30 can
Replies: 6
Views: 3304

Partsguys mostly Ti two piece tube .30 can

 Thanks to yall for the input Its mostly made from pieces of scrap from around the shop All Ti with the exception of the blast baffle 6.5" long 1.625"od at the rear .070" wall 1.5" in the front .050" wall 7 Ti 60* cones .050" wall  1 718 inconel blast baffle .080 wall Spacers are .045" 13.5 Oz http:...
by partsguy22
Tue Sep 19, 2017 11:05 am
Forum: Silencersmithing Forum
Topic: Monocore from a barrel blank... or is it a bad idea
Replies: 21
Views: 2939

Re: Monocore from a barrel blank... or is it a bad idea

I thought of that but I was thinking of using some .020" wall Ti tubing I've got in the scrap pile for the tube But if I'm going to use a steel core it I can use a different tube material since the weight isn't an issue any more My original intention was a ridiculously light .22 can that would go on...
by partsguy22
Tue Sep 19, 2017 10:23 am
Forum: Silencersmithing Forum
Topic: Monocore from a barrel blank... or is it a bad idea
Replies: 21
Views: 2939

Re: Monocore from a barrel blank... or is it a bad idea

I originally was going to make the core ~.75" longer than the tube the first ~.25" will be the same O.D. as the tube as well as bored and threaded internally for 1/2-28 the next 4.5" the o.d. of the core will be ~.008? smaller than the I.D. of the tube the last ~.5 will be threaded 5/8-24 or somethi...
by partsguy22
Fri Sep 15, 2017 11:00 pm
Forum: Silencersmithing Forum
Topic: Monocore from a barrel blank... or is it a bad idea
Replies: 21
Views: 2939

Re: Monocore from a barrel blank... or is it a bad idea

No clam shells just a little extra clearance like .010" core to tube