Slender pin

[djr76]

here are some pic I took by phone.

Please have a look at the flat end, That is another trouble. I machined it by live tooling(5/8 endmill), the heavy chatter damaged the cutting edge just a few pieces. I have tried rpm 3000, 2500, 2000,1500 and 500. feedrate is 0.002/tooth.

you can do it 1st before turning while you have 1/2" stock to give it rigidity, downside is you will have some interrupted cut, but a good quality roughing insert shouldn't be phased by it. Or you can do it with 2 end mills, a rougher then a small diameter for finish after turning.

[txcncman]

Wow. You been working on this problem 2 days and still do not have 300 good parts finished? Should have been dropping them off the machine completed at a rate of about 20 per hour. I feel bad for ya. Good luck.

[KenFoulks]

There are more than 2 inches in the jaws.

And What's mean of SSV?

Thank you, Ken

SSV is Spindle Speed Variation:

How To: Spindle Speed Variation | Haas

[joe-w]

Wow. You been working on this problem 2 days and still do not have 300 good parts finished? Should have been dropping them off the machine completed at a rate of about 20 per hour. I feel bad for ya. Good luck.

Thank you

[joe-w]

you can do it 1st before turning while you have 1/2" stock to give it rigidity, downside is you will have some interrupted cut, but a good quality roughing insert shouldn't be phased by it. Or you can do it with 2 end mills, a rougher then a small diameter for finish after turning.

Thank you djr76