Quote Originally Posted by Jonathan View Post
With MDF you want to use a relatively high feedrate and low spindle speed so that you get a high chipload (about 0.3mm depending). If the swarf is dust then either reduce the spindle speed or increase the feed.
What size cutter are you using so I can give some examples?
There you go Wiz I knew Jonathan would know this one it will actually provide some very usefull tips and information for others.

Rick