John Quincy Adams/Speed Merchant – HO Scale

This download includes all of the .STL files needed to build a complete John Quincy Adams or Speed Merchant train in HO scale. Also included are .STEP files that serve as an assembly guide and allow you to modify the design and model other Talgo-style trains. You’ll want both a FDM printer and a resin printer in order to complete the model as shown in the project gallery.