Trying Something Other Than Wood.

This week after I got the beast moving again I started cutting something other than wood..  This stuff is called DieBond.. A substrate for outdoor signs that is reported easy to cut and shape..  My first pass was great, however each progressive sign the edges got nastier and uglier.. Some of this is because new tools are supper sharp but I think most of the problem is the feed-rate and spindle speed..  It could be the different material.  Each manufacture has different quality standards and cause the cut to go poor..