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Yes, I have had to grind the insert holder on some tools.? It was easy and not particularly critical.? Just support the edge of the insert as well as you can.? After that they worked fine.

I'm assuming TCMT tooling? ?I use this on my SB9A and SB13 all the time, no issues. ?What type of material? ?Let's see a picture of your setup.

Bill: Could you provide suggested part numbers?

The type of insert may be the problem. I recently had to turn 5" diameter 304 stainless and my "normal" inserts just were not doing a good job. Talked to a tooling guy and got some Sumitomo inserts

A picture would sure help here. I have put a little extra clearance on certain insert tools at times but these were for unusual cuts. Is this just normal OD turning? -- Bill From Socal

I recently went modern and purchased a box of subject tool bits.? I had been led to believe that tool preparation was a thing of the past. My 9" Model A? complained with growling and chattering,

Very interesting. I may have to investigate this when making rocket parts. Make a spinning tail chuck then release instead of quickly shutting down the lathe. I forsee a loud band, something breaking,

Friend of mine said he tried it before and it worked okay. He said you have to stop fast to get a good bond. The lathe he used was pretty big and had a foot brake which disengages the motor and

Yea , I'm not so sure it's a job for these old lathes , but it was something new to me . animal

I wonder if could get enough speed though. Sounds like his really winds up

I thought that was super cool!? Thanks for sharing. -- 1969 16" x 6' South Bend Lathe Garage full of old Mopars........

this popped up after a tube I was watching https://www.youtube.com/watch?v=XRuKKchj7sk

Brilliant! I'd planned to do the two collar test and the 12" long cut test, but I'm going to add this one to the list, probably at the beginning. Still have to mount my chuck, making the back plate

To be clear once I used the 2 1/2 inch bar and skimmed the final coat, over 9 inches I got measurement error.? So roughly within 0.00005".? That is crazy good for a machine like this. -- 1969 16" x

Tailstock ram must also be level. You'll find a lot of tailstock bases worn on the front end from heavy handed operators shoving them around. You might have to shim it level and then you should shim

.0002" taper sounds pretty good on a 55 year old machine. What are you trying to test because your setup has at least 5 variables?

Assuming the twist is out of the bed here's an easy one to set the tailstock. Say the diameter of the? quill in the tailstock is 1.4985 inches. Turn a short piece of metal in the chuck to that

THANKS!!? that was the Best I've seem!!? Figures!!? It'd take a meticulous girlto show us how to get it done!!? lol

Thank you Rogan!? That was very helpful in making me understand that I had a brain cramp.? I should of know better.? My tailstock center alignment was way off and really skewed my numbers. I redid

For aligning a lathe, I use the process Blondihacks describes: https://youtu.be/H0MwCyWeP7I?si=xxxzUihtQkf_h402 [email protected]> wrote: