Tapping Oil ? For tapping Acme thread in bronze.

[754]

There is an machine shop instructor on Instagram building an optical collimater... he ix usimg some Thorlabs stuff...... snd some optical lenses he found...

[754]

Which lathe ? SOUTH BEND has one with i think t slots and tapped holes.... will see if I can gleep a pic..
maybe no t slots, this is OEm , I believe.....

[754]

I have anchorlube, or should have , used it sometimes.
Ok had 12 pieces to do 2 1 /8 long. First one cut fine, not much heat. Backed it up a bit,...

[754]

Its a 2 stage tap, first part having a V thread to rough it out, then changes to Acme with lots of start taper.
i wasplanning to run the v thread...

[754]

I have cut a few Acme threads in bronze... usually one or two on a job, and i single pointed them.. likely used a biypt of tapping oil..it was a while...

[754]

I am thinking you can get in the game cheaper with a few of them machines than going CNC. A company up here makes changeable bit screwdrivers.. since...

[754]

On my turret lathe i kept parting tool on front of cross slide. On the rear i mounted bevelling or radius end tools mostly. It had stops for rear tool...

[754]

THANKS THAT may be it, i did see a spring collet that was maked that online. I forgot to maybe search Schaublin W 20, that may bring up a lot more.....

[754]

I have some Schaublin toll holder blanks, look like a smaller version of an R 8...the straight part is 20mm. That and taper around 3 imches long, end...

[754]

While you are doing it, mayas well cast a few extra ones..

[754]

On my British turret LATHE ... AKA Capstan, i made one out of 2 x3 Steel .. standing up. Bolt thru middle for tee slot, milled on bottom to look like...

[754]

Looks like a circle cutter with the arm missing.. what size is the part the fingers are holding? Is it removeable ?
tried to post this earlier,...

[754]

Just like aircraft hopefully get replaced , before service life is exceeded.....

[754]

Learn to say one thing... NO...... it will help in some cases..

[754]

I think the second end of ship plowing in was a bit like a meteor crater.. a lot of material displaced rapidly. So as it plowed thru , it passed under...

[754]

What would you rather be in on rough water, a 14 foot rowboat or a 140 foot vessel ?

[754]

Like a lot of things in life ... it worked,and worked well... until it didn,t..
so now its changed, and they have to try to make sure it does not...

[754]

I could be wrong, but I seem to recall that when it happened, I thought they mentioned dust storm...
if that ux the case, its nit just a wind...

[754]

Its really hard to guess what actual intent of a post is.
I read it as you were annoyed that the wrong die arrived, and I read it as this caused...

[754]

Very well built machine....