Some designs done in SCARM. Started to get a little crazy seeing how much track could be jammed in to the available space. The basic idea is to elevate the top outer track using a ‘cookie cutter’ method on the rigid foam board to a height of around 2 inches. At the highest point in the middle/top, I’m thinking of a bridge. A leg of the inner loop will pass underneath the bridge and may require a negative grade to clear underneath to outer loop. I’m waiting on more track to work out the outer loop and play around with space requirements. I’m not wanting to go over a 2% grade, but even that will require nearly the whole run from the turnouts all the way to the top. For full size view of the pictures below, right click and select ‘open link in new tab’ (Chrome).