... intended method is that you start with known prototype dimensions, not model dimensions. *it's convenient to use background shapes for that -- in this case a vertical line at x=320mm. cheers, Martin. posted: 16 Mar 2019 14:33 from: Godfrey Earnshaw Hi Martin, Where does that data panel reside? Thanks Godders posted: 16 Mar 2019 14:48 from: Martin Wynne Godfrey Earnshaw wrote: Where does that data panel reside? Hi Godders, template> switch settings... then: 2_160943_250000000.png Several option dialogs appear in sequence, with help notes. The one shown for Stefan's switch is for curved switches. The details vary for other types of switch. More about types of switches at: http://templot.com/companion/real_track.php cheers, Martin. posted: 18 Mar 2019 20:53 from: Stefan Sczekalla Dear Martin, thanks- this was the "Rosetta-Stone" I was looking for. BTW: you know about ginseng and micronutrients to keep your Brain up and running? cheers, ...