I'd like to create plt files 1220 x 700mm to suit the bed of my CNC router. This should give me the ability to plot specific areas of a drawing without creating multiple dxf files. In Acad LT 2002 I used Heidi printer that shipped with acad these allowed you to configure large print sizes.

My question is: How can I get plt files 1220 x 700 without owning a large format plotter I'm running windows 7

Please can anyone help? PS I can create plt files up to A3 ( size of my desktop printer)