Flatbed train cars, compatible with popular 1" gauge wooden (and other) tracks.
These have "magnet pockets" on the ends to hold some 6.5mm N42 magnets I happened to have (like these: https://www.kjmagnetics.com/proddetail.asp?prod=B444).
The wheels double as funky Lego mini-fig hats.
Letters are not included in these files.
Axles.stl | 5.7MB | |
TrainCarriage.stl | 231.0KB | |
TrainCarriageWheelsAndAxle.scad | 4.5KB | |
TrainWheels.stl | 17.5MB |