Hi Justin,
The tape drive was there to load the master file for the machine. If you want to load this Via the RS232 round plug on the machine via a pc then this is no problem. Contact Shane Martin (
www.martincnc.com) and ask him to supply you with an Eprom for this machine and also the master file for download.
You may not be able to use g code as I suspect this is a 001" machine and not BX control 0001".
I live in the UK and have had superb free advice from Shane ( EX CMC) to the extent of carrying out all our own repairs. Look at his website for contact tel no.
Enjoy the machine. best regards. Louis