This is a model of the czech freight wagon EAS suitable for H0 railway models. It is possible to print it using SLA or FFF printer.
See more info at: https://blog.prusaprinters.org/3d-printed-railway-models-part-ii-trains-and-buildings/
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The best results can be achieved by printing the model with a MSLA printer, such as the Original Prusa SL1. Print the chassis and the wheels separately and flat side down to make the wheels as round as possible.
FFF/FDM print should be done with a 0,25mm nozzle.
The author hasn't provided the model origin yet.