If you must run a BI-60 on Windows 7, here are the proven methods, ranked by reliability.
Open Windows Device Manager and verify the plotter appears correctly under USB or COM ports. Compatibility & Connectivity Tips Bobcat/Sable BI-60 - General Help - USCutter Forum
Marcus loaded a roll of matte black vinyl, fired up his ancient copy of SignCut, and drew a single, perfect star. gcc bobcat bi-60 cutting plotter driver windows 7
Download the 64-bit driver and follow the installation wizard. Windows should detect it as a "USB Printer" . Critical Connection Tips
If USB direct connection fails, some users recommend using a Keyspan USB-to-Serial Adapter Go to product viewer dialog for this item. If you must run a BI-60 on Windows
provides legacy version 2.06-08 downloads for Puma II / Bobcat. Connectivity Direct USB
: Powered by a digitally controlled servo system for precise movement. Driver & Windows 7 Connectivity Running the Bobcat BI-60 Download the 64-bit driver and follow the installation
If you still possess the gold-colored CD that shipped with the machine: