... ruler should then appear where your mouse pointer is. Next, put your mouse pointer on the spot where you want the ruler to end the measurement, then: Press and hold the Alt key again, and then click the mouse right-hand button, The ruler should then be at the measurement point where you require, Hope this helps, All the best, Brian Nicholls. posted: 21 Oct 2011 17:24 from: Martin Wynne Hi Leo, I've uploaded a drawing for a PRR #10 Double Slip: 2_211150_210000000.png The full-size version (it's too big for here) is in the Image Gallery at: http://85a.co.uk/forum/view_gallery_single.php?display=ALL&page=895 Sorry I don't have one for #12, the next size is #15. I've no idea of the copyright on this, but as it is dated 1913 we shall assume it's ok until someone says otherwise. The switches are 18ft-6in straight switches with 6.5/8" heel offset. I think you could reasonably assume ...