... station. (Usually Shrewsbury) So lacking practical experience I was interested in finding out how much fettling would be required when translating the printed output from Templot to a layout that includes level changes. cheers Dave posted: 11 Mar 2018 20:14 from: Martin Wynne dave turner wrote: So lacking practical experience I was interested in finding out how much fettling would be required when translating the printed output from Templot to a layout that includes level changes. Hi Dave, Here's a (much exaggerated) diagram showing what happens: 2_111450_350000000.png The upper red line shows the templates as printed flat. When the template is cut through and laid up or down an incline to a different level, you end up with a small gap in the templates. In practice it is a tiny gap at sensible gradients. For example for a 1:80 incline to drop 75mm (6000mm long), the gap would be only 0.5mm. That's well within the tolerance for laying out paper templates over a distance of 6 metres. cheers, Martin. posted: 11 Mar ...