... topic: 2048 Newbies and complex switches posted: 31 Aug 2012 18:05 from: Compstructor 2376_311249_510000000.jpg Hi, I have spent the last week or so using Templot to design a set of Double slips in 2FS gauge, I was looking around for some info on hinging the crossing rails and to my total disbelief I read that a 1:10 double slip is a no-no and I should be using a switched diamond. Is this really true? I am also a bit confused over moving and non-moving K Crossings. Can somebody put me on the right track, pardon the pun. Shall I need to pull the sleepers up and start again? Photo attached .undefined Thank you in advance Kev. posted: 31 Aug 2012 18:58 from: Tony W Hi Kev. No, from your picture you are doing your 1 in 10 double slip correctly. The rules for prototype diamonds is that for obtuse or K crossings, fixed crossings can only be used where the angle is less than 1 in 8. For those of ...