I have been watching the MIT how to Mill series and I wish to comment. I am jealous of the chips this man gets. All my chips look like the iron filings from a mill file operation, or at best saw dust. But regardless of whether he mills iron, steel or aluminum as in this vid
[youtube]M4kVm7lpMEQ[/youtube]
he gets nice big chips. What am I doing wrong? I use the speeds he discusses (in other vids) for the same size end mills and he gets these big chips, but me? I get dust chips.