Spreadsheet of Buildings, Locations, Industries, etc. (Rev8 Updated 2025-04-10)
3D Buildings in Sketch Up by Russ Schundler
Ossipee
Ossipee Historical Society Photos
Wolfeboro
Dave Warren’s Models
Paul Turner’s Models – O.P. Berry Mill Complex
3D Printing
Here are some great places to find CAD design files for 3D printing HO scale model buildings (1:87 scale):
Repositories & Marketplaces
These sites offer STL and CAD files—many are printable directly or easily modifiable:
1. Thingiverse
- Search: “HO scale buildings”, “HO model railroad”, “1:87 buildings”
- Pros: Free, lots of community content
- Tip: Check print settings in the description—some require supports or multi-part printing.
2. Printables (by Prusa)
- Similar to Thingiverse, but with better file organization and previews
- Search for “HO scale”, “railroad”, “buildings”, “depot”, “storefronts”
3. Cults 3D
- Many free and paid HO scale buildings
- Categories: “Architecture”, “Model Railroads”
- Often includes more detailed or professional-grade files.
4. CGTrader
- Larger selection of high-quality HO scale CAD models (many paid)
- Formats: STL, OBJ, and sometimes STEP or 3MF
- Look for “HO scale railway station”, “HO shop building”, etc.
5. MyMiniFactory
- Has a growing library of model train accessories and buildings
- Filter by “free” if you’re looking for budget-friendly options
🧰 CAD File Libraries for Editing
If you want editable formats (like STEP, IGES, or Fusion 360 files):
6. GrabCAD
- Mostly mechanical models, but some buildings and HO train elements are available
- Useful if you want editable CAD files, not just STL
7. Sketchfab
- 3D models in various formats—some downloadable, others just viewable
- Be sure to filter by downloadable content and file type
🏛️ Specialty Model Train & Scenery Sites
8. Model Railroad Hobbyist Forum / STL thread
https://model-railroad-hobbyist.com
- The forum has a dedicated 3D printing section
- Users often share links to downloadable HO scale buildings and accessories
9. TrainBoard.com & NScale.net forums
- Even though focused on various scales, they often link to HO printable models
- Some users provide original files or tips for designing your own