HO Scale Industrial Factory Shell — Gantry Crane & External Stair A compact industrial building shell sized for HO (1:87) model railroad layouts and dioramas. The model includes a low corrugated loading bay with a large arched opening, an adjacent taller tower with a 2x3 window grid, an external right-side staircase with railing, a short projecting gantry arm with two pulley wheels over the loading bay, and two dome roof vents. Corrugated siding ribs and cutout window grids are preserved for realistic paint and weathering. What you receive: one master STL scaled for HO (factory_shell_ho.stl). The file is a closed, printable shell without groundboard, signage, or props so you can customize paint, decals, and accessories. The photograph reference had an occluded area on the upper-right tower; this model does not invent missing decorative detail in that region. Recommended printing: resin at 50–70 micron for best detail or FDM with supports under the gantry and stairs. Miniature Reality ships a single 1:87 master STL; to print other scales rescale the file in your slicer and check critical feature thickness. Use it on HO layouts, as a diorama backdrop, for kitbashing, or as tabletop terrain. Suitable for hobbyists who want a neutral industrial shell ready for weathering and customization.

Available railroad scales: Z (1:220), N (1:160), HO (1:87.1), S (1:64), O (1:48)

Ready to print digital download in one piece with no assembly needed.

IMPORTANT: You are purchasing the file in the scale selected below.

Miniature Reality Makes practical, print-ready scenery and vehicles so you can economically fill out the background of your layout, diorama, or tabletop without paying centerpiece prices for everything (Our hobbies are dying because the average person can't afford to enjoy them, we want to help fix that). We want your miniature worlds to feel real and full of life - with more variety, more detail in every scene, and prices that won't hold you back.

Miniature Reality Personal-Use License (No AI / No Resale)

• Allowed: personal printing for your own layouts, dioramas, tabletop games, and personal display.
• Not allowed: sharing or distributing the digital files (free or paid), re-uploading to any site, bundling, remix resale, or selling/redistributing printed outputs.
• Not allowed: using the files (or derivatives) to train, fine-tune, test, or feed any AI/ML system (including dataset creation).
• Not allowed: commercial use of any kind without a separate written commercial license from Miniature Reality.
• Enforcement note: digital files may include purchaser-linked identifiers / forensic watermarking to help investigate unauthorized distribution.