Hello if the 600lbs tape unit has got a little panel on the top which if I remember gave indication in red L E D readout which was for tool change information and tool offset's then your machine is one of the old series II NC machines with the C 6 boss option if this is so then the top of the table flips up when you release a catch on the back underneath the work top and inside is the C 6 option with the boss control boards in it it should also have a two round connectors on the back one of these allowed the connection an external computer to be connected or one of the old teletype machines using the old style 20 volt connection if it has then you can still connect a modern P C to it using a Dos program to link up with it, it will also when connected give a listing of which Boss control is being used. If it hasn't got this extra control box and it's just got the control panel with the large transformers in the base and the tape reader built into the front panel then it will just be an N C II machine which needs programs input through the tape drive but you can put basic G code commands into the control one line at a time but it was very laborious and I think it very limited on the memory. I hope this might give you some useful info keep us informed cheers Colin.  |