I have upscaled the excellent design created by "AgepBiz" from S-gauge to gauge 1 (45 mm track width, scale 1:32).
The original design was scaled up to 196%. Two half floor parts are merged into one part.
Original Marklin Gauge 1, or LGB wheels can easily be fitted on 4 mm axles of 65 mm length and fit perfectly in the axle boxes.
Now I "only" need to smooth and paint the printed parts to have an "Anna" and Clarabel" pulled by live steam gauge 1 locomotives.
The Aster "Ouest" C-tank engine does look a lot like Thomas ;-).
Update: Picture added. The red one is fully painted. The green one remains unpainted. It's nice as it is, and will be used to show the possibilities of 3D printing.
Bottom / Top layers: 3
Wall layers: 3