Realistic 3D printed tracks for regular size Plarail

Just the lead motor.  I’ve found the transition point from no outer rail to original track is important for some cars in which there was a slightly wider range of horizontal wheel travel (eg having a curve join to a straight with outer rails, a trailing car could trip on the outer rail but this was mitigated by extending the no-outer-rail segment with a straight).  Alternatively, I’m considering a simple “check rail” type add-on with a rounded end that would gently guide any trailing wide wheels back to alignment inside the outer rail (kind of like what’s on a rail turnout but in this case guiding from outside in).

   

It was a lot of fun having side by side trains running too - the larger radius curves really look great (this one 275mm to keep with the Plarail standard but I intend to keep going out wider)