Hi
I found this Rail Modeller Express app for Mac. The pro version comes about $35 or so but the express version is free. the free version does have Unitram templates.
Anyway, I'm trying to design a Unitram layout trying to keep in interesting but small This 2nd design (First one not published yet) is 78.04 x 42.33mm. There's no reversing loops or conflicts in this one and I like that as opposed to my first choice. I do have 2 power packs.
I wonder how exact the design app is though, Look at the photo and see the orange arrows showing gaps in the track. What are your thoughts.
Thanks
Allen