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[Fasturn]

Tim, 01 is tricky and I may have gotten lucky. The first 2 pins cracked in half. The deep purple draw was right on the last pin and has worked for years....

[Fasturn]

I have made them from 01 steel, but the draw is very important so they dont crack and break. Blue - purple seem to be about right. If you are a machinist...

[Fasturn]

If it is lay-up molded RTM, it can de- laminate and you are the bad guy! If you consider doing it you need to turn a piece to see the results. I have...

[Fasturn]

Quite the old Boy . You dont find alot of guys like him anymore ?...

[Fasturn]

If using a chuck, make a plug for the ID so you dont collapse the pipe. Also you can grip it tighter / safer using a plug on the chucking side. Have fun...

[Fasturn]

Bore ID make a plug with a center to fit bore. Turn OD . If not too fussy you can hold in chuck and turn it around to finish it. Brass turns very nice....

[Fasturn]

Nice to hear your healthy and back at it. They are blessed to have you !

[Fasturn]

Never served, but own 4 AR rifles and 2 AK's. The hit probability was better with the AR @ 150 yards. They would jam alot if not using Colt mags. The...

[Fasturn]

I have bought alot of Chinese tool holders over the years and they seem to be 38 -40 Rc scale. Not a problem for a lot of shops, but my 300lb lathe can...

[Fasturn]

Only thing to add is feed with the compound rest @ 29.5 ° dont feed straight in with the cross slide. It creates more tool presure that way. Threads...

[Fasturn]

Funny you say that? I was going to buy a bigger granite plate for my home shop ( gage layout ) then I got the crazy idea to used a piece of 1/4 x 16x...

[Fasturn]

I am with Tim The Grim, interesting idea, but wet / dry paper with isopropyl alcohol works for me. The clean up with the tape would be a lot of work....

[Fasturn]

That's very impressive, did you do it in one pass CNC, or peck cycle? What kind of steel was it?

Not to play the one up game, but the smallest...

[Fasturn]

You got it right...... the compression of the thread makes it stronger in most cases. A sharp thd is last thing you want, so we truncate to 75 - 80 %....

[Fasturn]

Roll taps not used on space craft hardware seem to have hit a nerve ? Here is another reason that industry is against that thread. The entrapment at the...

[Fasturn]

Yep was at a table top meeting for a Sun shade mockup. Was used in the parking lot with a meade 10 " 12 years ago. Then the cryocooler which is everything...

[Fasturn]

Wow....where did you get that info ?? Must be a Gun nut like the rest of us ,thanks.

Nickel: : I have a 1919 simi and sold a part set for...

[Fasturn]

That's the funny part, stress guys didnt like the cracks ( electron scopes and die ) but the bolts ,tapper head titanium and stainless were all thread...

[Fasturn]

Probably would, the grind is important. You / me are showing our age : Rex AAA. Was the goto in the 70's Ask a youngster about Rex, and see the look...

[Fasturn]

Wow you have machined some of the bad stuff too. Reading between the lines on this site, most have only machined the garden veriety. Kovar is one more...