On Jan 9, 4:23*pm, Dom wrote:
I'm making some canisters that have a glass piece in them. *It is a
tube 200mm in dia, 5mm thick, and 350mm long. *The tolerances on the
tube are quite wide, it can be up to 1mm out of round, although the
wall thickness is probably within 0.2mm.

I have a custom made toolpost grinder for parting them off in the
lathe which after some trial and error seems to work well, and I now
have a good process. *I can part one off in about 7 minutes.
Currently I'm using a linisher to take off the sharp edge, and prevent
the glass from chipping, however this gives a poor finish, and will
sometimes chip the edge. *Deburring in the lathe will not work,
because the piece is out of round.

Any suggestions on a better way to debur the edges? *I'm only trying
to achieve a 0.5mm chamfer.

Cheers, Dom.

Oh, I'm need to debur the inside and outside edges.

I've used a wet carborundum stone to bevel the edges of rear view
mirror blanks before installing them in the housings. Done by hand,
no heat. A diamond hone plate with water should work, too.

Stan