Depth of cut cowells me90

[kinross1Participant @kinross1]

Hi Jason.
Just had a look and I do not think that the nut head is meant for adjustment. I could undo it a little but as I am now able to cut . 5 mm without a problem I will settle for that. My belts do seem very tight. As has been posted the secret is to keep them and pulleys clean of oil etc.

Thanks. Mike.

[old martParticipant @oldmart]

Half a millimeter is close to 0.020″ which is an admirable result for your lathe, I would rarely cut that deep on a much bigger lathe with carbide inserts of any shape or grade.

Remember to oil your bearings every time you use the lathe when the belts are tight.

[Roger WoollettParticipant @rogerwoollett53105]

The Cowells ME90 should deal easily with 18mm silver steel.

If you are getting belt slip I suggest you should use the backgear. In any case I would start with 240rpm.

I use HSS tools and in this case would want around 10 degrees top rake (opinions vary). Make sure the cutting edge is really sharp.

If the cut is any length I would use the auto-traverse and probably a touch of neat cutting oil.

I have not tried this out but I would expect a 0.5mm cut to be reasonable. Perhaps less to finish.

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