You can download a 30 day free trial of g-wizard from cnccookbook.com
With g-wizard you can draw lines and see the gcode or write gcode and see the lines - side by side.
Printable View
Open up a new IPT
Click on the green tick to take it out of sketch mode and put it into feature mode
Click on the DERIVE button
Choose model you want to scale
In the derive window you can choose your scale.
Thank you if I can't figure it out mind if I send you the file?
You can send me the file if you can't get it, but I bet you will get it. My real email address is in my first reply to this thread.