Originally Posted by
angryManLT
I've got a stupid question i quess. As the topic says I'm confused with cut speeds and feed rates. I was working with plexiglas for a while, and used cutting speeds and feed rates that milling cutter manufacturers recommends. I use single flute end mills for soft plastic and CNC Router Victor VS 1530a. max spindle speed is 24000 rpm.
In example i was cutting plexiglas for a while at 22000 rpm and 3000 mm/min feed rate with 4mm end mill. And it was pretty nice, the cutting edge was quite good. But now i saw one guy who is cutting with same cutter at 5000 - 6000 mm/min and that seemed crazy to me. I fear i can broke tool like that.
Furthermore, when i was face milling mdf plate i used 5 m/min feed and 22000 rpm, but that guy was doing it with 15 m/min.
So how u decide speeds and feeds? I know if the cut is too rough or it starts to burn u need to increase feed rate. Or just u experiment till you get desired effect?