Control Board Progress

Today we were able to cut out the polycarbonate for a control board on the CNC router at Glendale Community College.  It took much longer than expected, due to the polycarb melting at any feed rate over 18 IPM, even with a constant cool air blast on the endmill.  Machine setup took about 75 minutes, and fixturing, cutting, and removing the panels took about an hour.   Tomorrow evening we will finish cutting the second board.  Below is a picture of the assembled control board.