Some time ago, TrainHead asked if someone would convert his layout drawing into software so he could see how it fit in reality and get an accurate parts list. Here is a link to the original thread. I accepted the challenge and he mailed me his scale drawings. It's taken some time with some back and forth, vacations, etc., but we're in the final stages and have run into a problem with one area of the conversion. So, I thought I'd post what we have and see if anyone can come up with an idea to get us closer to the drawing.
To that end, the 1st photo shows the troublesome section of the design and the 2nd photo shows where we are in SCARM.
I was able to match the drawing everywhere except the turntable section you see in the 1st photo. As you can see, there is a set of turnouts coming off the 90° crossing that lead to the 34" turntable with a 5 stall roundhouse and they go through a coaling tower. Unfortunately, TrainHead used some O-63 turnouts in the drawing that Atlas doesn't make and alternate turnouts (O-54 and O-72) have a different footprint, so things don't quite match the drawing. Also, if you look closely at the drawing, you can see he took some artistic liberty and the tracks leading into the turntable don't quite match the angle that is needed to properly connect in reality. Both those problems don't allow room for the 3 straight tracks through the coaling tower. I've tried every combination of curves and cuts I can think of, but this is as close as I've been able to come to the drawing given the size of the peninsula we have to work with. I've attached the SCARM file in the hope that someone will take a stab at it. I'm sure TrainHead would appreciate the help, I certainly would.