Face mill finish

[Edward]

Tool marks are to be expected to some degree but the raised edge is simply because your spindle is out of Tram. Wider the tool the more it will show how far out your spindle tram is. You've most likely not seen this before due to using smaller tooling but soon as you go wide any errors show up.!

Getting a mirror Finish is all about feeds and speeds and material along with whole load of other factors like machine ridgidty, coolant etc only thru trial and error will you find the right combination, if at all.! . . No one can give you magic numbers to achive this.

Thank you, Dean. Off I go to tram that mill then. I am not too worried about the minute toolmarks, as you can't even feel them. But the raised edge is something I have to sort out.


Edward