>Take a look at page 49 of Nick's book in Chapter 4, Lofting ... he talks about using graph paper with 1/10th inch grids and how to interpolate dimensions such as 1.36"...do you only have metric graph paper, and hence the need to convert? Or am I misunderstanding the question? If you are using graph paper, I imagine it would be tough on the eyes to convert and plot, but then use your computer to calculate all the conversions. Or if you want a piece of graph paper with 1" grids in 1/10" increments, I'll look around and see if I have a piece that could be sent and you could photocopy as many as you need. PS - most of the woodworking rulers and tape measures we have in the US are graduated in 1/16th of an inch ... I've never seen a ruler in 1/10"'s or 1/100th"s.