Alright, got the case top file loaded into Netfabb, repaired, rotated around the y-axis, saved as stl file (had to add the extension to the file name). Opened up in Pronterface, sliced with no errors and FINALLY there it is sitting face down on my G-code view... WHEW... That was like pulling teeth, but once again I learned a LOT. Thanks for the guidance... Hope to have a complete HeaterMeter case SOON! Wish me luck....