Thanks for your concern and response ....
Yes, I have the custom gpx.ini and have set the S3D offset commands to -x 54 -y 6 .... also, I have the M180's physical "Offset and Calibration" ( 10 ) now at X 132 Y 76.3. This seems to get me to within ±10mm of center I figure there must be a less demanding process !? I know this machine leaves a LOT to be desired especially for us Apple Macintosh users ... we tend to expect superior compatibility but the manufacturers seem to be Mac blind and somewhat ignorant and evasive. Cheers.
