Really looking good Ripley and quite professional with a CAD drawing. Have you thought of or allowed for the length and for how many sloped rails you are going to use or a combination of sloped rails and sloped curves? One sloped rail is 17" and will only drop you 3".
Thats going to take up a lot of space. You also may want to make up a prototype using cardboard (unless you have already thought of it) to make sure you have the proper length of the rectangular cut out. Just by looking at the gradual drop of the regular sloped rail and judging how tall an engine is, the opening may have to be 12" long??? Thats just eying it up without doing the math. It would be worth the time to make sure before cutting a hole in that nice deck. I am using your experiences to learn and decide if I ever want to try this. I am curious as to how long Muddys opening is but he may have increased the slope of those Trackmaster tracks by dropping them more as the trains fly down to the Egyptian desert.
Ripley, I really enjoy watching this come together. I need to check out that grass mat you used next time I’m at Hobby Lobby.
Anxious to see how she is coming along.