Foam
Do you have interest in EVA/PE processing foam, we could cutting and routing it with CNC cutting machine for you.
The cutting edges are smooth and neat, the verticality is good.
It is important to consider a few key factors to ensure a successful outcome. These include the method of clamping the workpiece to the table, which should be done with a non-aggressive double-sided tape, and the choice of end mill. While a standard mill can be used, a specialized one designed for use on plastic and foam will offer the best results.
It is also advisable to use a shop vac during cutting, as cut strings of the foam can wrap around the mill. Furthermore, conventional cutting should be used, rather than climb cutting.
By taking these few considerations into account, you can achieve a satisfactory fit and finish when cutting EVA foam on a router.