Z Scale Wood Coach Car
This is a model of a 50’ wood-sided passenger coach. The trucks/couplers I suggest for this model are Micro-Trains #955 (Arch Bar Trucks).
I print my models on a filament (FDM) printer. That's what they're designed to be printed on. For weight and strength the roof and floor should be printed at 100% infill. I print the body at 75% infill for weight.
Print the roof and floor pieces flat-side down and no supports will be needed. Print the body upright and no supports will be needed.