Cjcrescent
Master Mechanic
I entered in the dimensions for the 130' turntable. 9-15/16". The diameter of the turntable wouldn't matter anyway. The tracks are 10 degrees apart originating from the center of the turntable. It's the roundhouse that isn't lining up correctly. It's no big deal. But I am a CNC Programmer and a machinist. So I am anal retentive and everything needs to be exact or I go crazy LOL.
XtrtackCad, for all of it's pluses, does have one big weakness. That weakness is that its not really a CAD program. Its a graphics program, that happens to draw trackplans. If you really feel that you need tighter tolerances, there are programs out there, that are true CAD programs. But unlike XtrackCad, they aren't cheap. Some don't have track libraries, structure files, etc. You have to draw all that in as you go.
I've used XtrackCad ever since it first was released as freeware by Silube (SP) Software back in the early 2000's. I've always told my friends and clients that I've used it to design trackplans for, that its a plan, not a blueprint.