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Gazzar

Starting turning on an old lathe

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And another:

What tool holder should I order to fit these inserts?

Are there Chinese versions at quarter the price, but 2/3rds the quality?

When I was cutting the CV axles I held the other end in a center. But the piece was turning, the center wasn't. I kept it lubricated, but I'd there a better way?

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1 minute ago, qwakers said:

you don't start with a drill bit for a start :D

 

use a tailstock center first

 

http://www.technologystudent.com/equip1/mlathe4.htm

Center drill! Perfect!

A solid centre punch sort of thing for a lathe.

I think I'll get one of those.

Thank you.

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Don't worry, I knew what you meant!

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23 minutes ago, Gazzar said:

When I was cutting the CV axles I held the other end in a center. But the piece was turning, the center wasn't. I kept it lubricated, but I'd there a better way?

That's the way with a "dead" center. The alternative is a "live center" which has a bearing in it, so the pointy bit rotates with the work. 

Grab a set of center drills - a lathe essential. They're the correct tool for making the whole for a center as well as starting a hole for a twist drill. 

I can't figure out quite what inserts they are, I'll have a look around some charts. Edit: Still can't say for sure, you'll probably have to carefully measure a few angles, then have a look here:

http://www.carbidedepot.com/formulas-insert-d.htm

To figure out what holder, the biggest factor is probably the size shank the machine can take. 

 

Edited by lo-fi

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Ha! I’ve just posted the same on the other thread thinking it was this one :lol:

the angle on a centre drill is also the same angle as a centre for the tailstock :)  

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