Well, I made a plug .004 bigger dia. and 3" long than the I.D. and pressed it through the tube to straighten it. It got within .008 of being straight but not good enough. I've made 4 orders of seamless tubing from online metals with none of it straight enough to make a suppressor. :evil: Now I ...

When working with tubing on the lathe this is what I do to reduce squeal and chatter. When cutting on the OD stuff a wet rag into the tube, packed in tight, and this will dramatically reduce chatter/squeal. When boring wrap the OD with a stiff modeling clay, 1/4 in is enough, then secure with a wra...

I use seamless pipe then turn and bore it to size.http://www.onlinemetals.com -CL What kind of boring bar & setup do you use for that? I tried a few different boring bars, placing a bunch of O rings around the tube OD, all kinds of different feed rates & RPM, feeding both directions, but no...

I received the tubing from Online Metals 1.625" OD x 0.065" Wall T-316. It is .006 out of round and in 9" .083 from straight all 24" that I bought. :evil: Capt, I am now looking for 1.625" OD x 0.065" Wall and will take you up on that offer if you have this or somethin...

Just called Online metals, they said all of the ss pipe is welded. Talked to 2 different people. They said the only seamless they carried was the ss tubing. At one time it was advertised as extruded pipe.I still have sticks of it what size are you looking for. -CL I received the tubing from Online ...

I have done testing on 316 ss using an ATV battery, worked well enough that when I finish my form 1 that's the process I will use.
I use felt stretched over copper and salt water(water that will not dissolve any more salt).
It takes less then 30 seconds.

The thing about "new designs" is that are hardly ever "new designs"...I bet Archimedes has the ancient Patent or papyrus somewhere on file! If you had not pointed out the photo with the sprue, I would have thought that those German baffles were hand welded on a tube. That design...

Bendersquint wrote:

fastfire wrote:Might want to change that to; 30cal.
300. CAL IS TO BIG TO SHOULDER FIRE!

And .458 isn't?

FIFY This is what I meant.. 300. V/S .458

These look to be cast. They are, and that for a product made like 70 years ago. I'll check but I thought these where bakelite. Gunny Now that ya mentioned it, that does look like bakelite, That would make them VERY light.................. Never thought about bakelite...... how long would they last?

The baffles look die cast?

Might want to change that to; 30cal.
300 CAL IS TO BIG TO SHOULDER FIRE!

NO, Can not have mutable calibers listed.

Spirals in general work well in the coaxial space created by some designs.I have used them as spacers and to control gas in integral ported suppressors.They have been used in some recent patents by Gregory Latka for pressure control.He also has a patent on one of the best so far use of spirals in a...

I have a pump shaft, it's 1 1/2" I could cut it on my little lathe but it was not easy, Which materials are pump shafts? it depends on what it was used for , if it was used in a high corrosive area it could be 316 or even Hastaloy , a lot are 416 though. if its magnetic its probably 416 , in s...

I machine mine from bar stock. 8) Machining pipe can be a pain in the ass. That would be a project, what material do you make your tubes from? 316L or 17-4 if its to be welded , I'd probably use 416 if I was gonna thread it. I have access to a lot of old pump shafts so its readily available to me o...

Samson1044 wrote:I machine mine from bar stock.

Machining pipe can be a pain in the ass.

That would be a project, what material do you make your tubes from?

Just called Online metals, they said all of the ss pipe is welded. Talked to 2 different people. They said the only seamless they carried was the ss tubing. At one time it was advertised as extruded pipe.I still have sticks of it what size are you looking for. -CL I just ordered 1.625" x 0.065...

Quote, All of the ss pipe listed is welded.[/quote] The Pipe is but not the Tube. The SS Solvent traps from Diversified Machine use 316 Seamless tube from Online metals https://www.onlinemetals.com/merchant.cfm?id=902&step=2&top_cat=1[/quote] ....................................................

Thanks, I had used 316L before.

1.25" NOM. (1.66" OD X 0.07" WALL X 1.53" ID) STAINLESS T-304/304L PIPE SCHEDULE 5 Pipe 304/304L

I first tried Speedy Metals twice and both times the tubes had defects. Then online metals, also have had issues with quality tubing there. SO...........Where do you guys get tubing that is acceptable for use as we use here? I use seamless pipe then turn and bore it to size.http://www.onlinemetals....

I first tried Speedy Metals twice and both times the tubes had defects.
Then online metals, also have had issues with quality tubing there.

SO...........Where do you guys get tubing that is acceptable for use as we use here?

Quote; The tension screws are on the angled portion of the baffles. Its more or less impossible for it to come out. I did have some chatter on one while milling the interlocking tabs. The ball mill didn't give me any issues at all. Thanks for that info. Again I'm going to use this method when the ti...

Good looking build. Ever had a baffle come loose in the tool holder? I think I'll try that.

In my very limited experience in this I believe the first version causes more disturbance slowing gases.

http://www.thefirearmblog.com/blog/2015 ... y-miracle/