I am brand new to CNCing. My MPCNC works great, it passed the “crown test”, and I’ve even done some successful engraving of acrylic. Today I decided to make a sign for our BBQ team for a competition next weekend, and admittedly, I’m using really cheap plywood… but the edges of where the bit travels leave a lot of “hair” (see picture). I’ve tried reducing feed speed from 8mm/sec to 4mm/sec and that did not help. Cranking the spindle to max speed helped some. It seems to be worse when the X-axis is traveling toward the left. I am using a 1/4" carbide square end mill.
Does anyone have any advice for a more clean cut in this material ?