I suppose this is not strictly a Tormach question but I *am* using a PCNC and I know that some of you deal with plastics so...
I'm making some parts of 3/8" thick PVC sheets. One part requires short grooves, 1/8" wide and 0.10 deep, near the middle of the outline. Cutting the grooves is no problem but there is a short "burr" of stringy PVC at the edges that seems almost impossible to clean completely. Varying feeds and speeds helps a little. Very sharp cutters help but not enough. I'm currently cutting dry with an air blast to clear chips. Would coolant help? What do others do to deburr stringy plastics?