This time it's platform height/clearance from the track. My brand new pride and joy (3801 from "off to the shops" thread) won't go round my layout. Yep.... and I bent the standards again. This time it was to do with platform height and clearance. My 3801 must be widest piece of loco/stock I have, and it wont go past the platform (either side). I did know/look at the NMRA standard, when I built the station platform, however I thought it was a "bit unrealistic" to have it that far from the track, so I built it a "little wee tad" closer to the track, (bout 2mm or 1/16") using my existing, at the time, stock as tests to check for clearance. The steam loco pushrod mechanism on the 3801 catches on the platform edge and jams there. luckily I made the platform out of balsawood, with an overhang (that is typical of Australian platforms) and I was able to shave about 1mm (1/25") off the platform edge. If I needed to shave another 1mm off, then I'd have to pull the platform down. Lucky, I suppose, I'd built it with that overhang. Standards..... They aren't invented for nothing, I suppose.