Is this 3D model free to download?

Yes, N Scale 150 ft Pratt Truss Bridge is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link to open the original listing by the creator.

Where do I download the STL file?

The download is hosted by Thingiverse. Use the "Download from Thingiverse" link on this page to open the original listing and grab the file, or save it to your print queue in the free Thinger app.

Designed by IowaScaledEngineering, published on Thingiverse. Please credit the creator when sharing your print.

Can I print this at home?

Yes. This is a printable 3D model intended for home FDM and resin printers. Check the original listing for suggested print settings.

N Scale 150 ft Pratt Truss Bridge 3D printable model by IowaScaledEngineering

N Scale 150 ft Pratt Truss Bridge photo 1

N Scale 150 ft Pratt Truss Bridge photo 2

N Scale 150 ft Pratt Truss Bridge photo 3

N Scale 150 ft Pratt Truss Bridge

Source: Thingiverse by IowaScaledEngineering

The N Scale 150 ft Pratt Truss Bridge is a free printable 3D model from Thingiverse by IowaScaledEngineering. These are N scale stand-ins for Central Valley 150ft truss bridges, designed to be used on my Copper River & Northwestern layout until I get the final models built and installed. You can download the STL file from the original listing below and print it at home.

Open in Thinger (free) Download from Thingiverse

35 saves Source: Thingiverse Updated 2026-10-08 License: CC-BY-SA · commercial OK Category: Decor & Art

Tags: N, Scale, 150, ft, Pratt, Truss, Bridge

About this model

These are N scale stand-ins for Central Valley 150ft truss bridges, designed to be used on my Copper River & Northwestern layout until I get the final models built and installed. While I've uploaded the "whole enchilada" model, I highly recommend printing the base and truss separately. Print the truss piece upside down, so the top members are against the bed. Should mostly eliminate the need for support. Once you have all three pieces - the base, the truss, and the bridge ties (if so desired, otherwise just secure track directly to the base), you can assemble and mount the bridge where desired. I've also included the original F3D file so you can see what a horrific 3D modeler I am (or modify it to fit your needs, whatever). But it gets the job done.

Frequently asked questions

Is this 3D model free to download?: Yes. N Scale 150 ft Pratt Truss Bridge is free to download from Thingiverse. Open it in the free Thinger app, or use the "Download from Thingiverse" link above to open the original listing.
Where is the STL hosted?: The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by IowaScaledEngineering.
Who made this model?: Designed by IowaScaledEngineering, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?: Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.