Quote Originally Posted by Snapper View Post
If you're using fusion, use the adaptive tool path for clearing metal out. I've cut down to 13mm Doc with my OMIO, between 0.3/0.4mm step over. You can go wider if you're cutting shallower. Better for tool life too as you're using more of the tool than just constantly using the tip.

Skim off the top of the part so it's all perpendicular to your gantry and spindle then your chamfers should be even. A light rub with sandpaper and a quick splash with polish to remove the tool marks and it will look much better than the grainy texture on the top of the extrusion as well.
I'll give that a go tomorrow.
I am cutting 15mm deep so try 7.5mm at around .5-.6mm step over?