... draw them at a wider grating spacing until I achieved a near correct look at the required scale of 4 mm to 1 foot. I am therefore a little concerned that the same my happen in 'sketchboard' or 'workpad' !! File attachment is: ger_55ft_engine_turntable_61ft_10-16in_x_57ft_5-36in_fp1656 I hope all is reasonably clear, but don't hesitate to ask if unsure. As stated above, I will get back to you with the notes, when I have had time to sort them out. All the best, Brian Nicholls. Attachment ... attach_896_1224_ger_55ft_engine_tu rntable_61ft_10-16in_x_57ft_5-36in_fp1656.gif 512 posted: 3 Oct 2010 04:28 from: Martin Wynne Hi Brian, That's brilliant. Many thanks. A few points: The prefix for the scaling factor should be pf (pixels per foot). You had fp in your file name. If you need a decimal point in a file name it is better to use p rather than a dash: _61ft_10p16in_ (For reliable internet use on all servers and browsers it's best to regard an underscore as the only permitted punctuation mark ...