This is a collection of undercarriage parts for freight cars. In particular, this is modelled after Soviet/Russian freight car components. The models are in 1/87 scale, but can be scaled to other scales.

Models are designed for photopolymer resin printing. Components of brake system have holes of 0.5mm for metal wire imitating hoses and rods.

The files are available in STL, most are available in STEP for embedding into CAD designs. There is a PrusaSlicer .3mf file with supports.

Contents:

SA-3 Coupler socket
Uncoupler lever (long)
Uncoupler lever (short)
Brake wheel (3 spokes)
Brake wheel (6 spokes)
Brake wheel (6 spokes and mounting box)
Brake wheel drive
Brake wheel drive with wheel shaft
Side ladder
Front/rear steps
Brake cylinder
Brake cylinder with long arm
Brake distributor
Airtank