i got 2 that work great....tracking is typical roland, ou got to get it just right....or 10-12' id all you can do. go to www.rolanddga.com and go to support and choose ploter and legacy product, it will give a PDA format to look and read and print. the PNC-1100 is an equvilant of todays CM-300 roland. toatal different machine then the a CM, CX-24. steve in sarasota just had problem with his ..it back a week or so ago...but he fixed it.
people talk about the old gerber 4 b's as bullet proof , well these rolands are tight up there with them and better cause you dont need a cadlink card and to my knowledge you can only communicate to a gerber via comm port.