Re-railer for N-scale flex track

This is a printable re-railer section for use with a piece of flex track in code 80 N-scale. All dimensions are parameterized, so it could be adapted to other scales by plugging the appropriate measurements into the .scad file.

My son recently expressed interest in model railroading. While I had some hesitation regarding a 10-year-old's patience for lining up the tiny wheels of N-scale rolling stock, I didn't want to spring for all-new track, rolling stock, etc. in HO. I bought some flex t