cutting lower wheels with a radius cutter

[jlrussell4]

I thought the radius was half of the actual diameter of a circle.

Another way to visualise this is that the cutter swings in half of a circle - the radius. If the cutter could swing all the way around to the back side of the anvil it would be cutting the diameter.
[ Actually it wouldn't because the anvil would be turning the wrong way .]

[kit]

Originally Posted by jlrussell4

Nice tutorial Rick.

I had a machinist that faced my upper anvil back before I had my larger lathe. He said that with the bearings installed he was getting some play (or shake?) in the wheel. It doesn't look like you are having any problems cutting with the bearings in. Is that because you are compressing the anvil between your head and tail stock?

Thanks

I get shake on my radius cutter if the wheel has ball bearings, not so much if it's fitted with a plain bush, does it matter? a light cut at the end fixes it to run true and paper held on a length of timber polishes.

[Rick (madera)]

Originally Posted by jlrussell4

Nice tutorial Rick.

I had a machinist that faced my upper anvil back before I had my larger lathe. He said that with the bearings installed he was getting some play (or shake?) in the wheel. It doesn't look like you are having any problems cutting with the bearings in. Is that because you are compressing the anvil between your head and tail stock?

Thanks

Jim if you notice I have a drive pin on the side of my round bar stock that is chucked up in my lathe. That pin goes in a hole on the side of my anvil. I have a 1/2 shaft chucked up in my tail stock with a collar on it. That goes thru the anvil bearings into the bearing in the bar stock that is in the chuck. When the chuck is turning it is spinning on the 1/2 shaft.the collar is up against the anvil so it cann't move off the drive pin. I hope that helps