This download contains one master STL intentionally scaled to 1:87 (HO): a compact small historic water-powered mill modeled to read clearly in tight rural dioramas and on model-railway layouts. The structure is a modest two-level mill sited for a narrow millrace: a textured stone foundation supports a timber-framed upper volume clad in vertical plank boarding. A projecting wheelhouse extends from the side wall and carries an external water wheel modeled with a distinct hub, radial spokes and broad paddles; the wheel includes axial clearance and a recommended cut plane so you may print it attached for simplified finishing or separated to assemble a free-turning element. Visible architectural details: steep gable roof with pronounced eaves and exposed bargeboard, shallow plank relief on upper walls, small multi-pane window slots sized to HO proportions, and a single exterior access door. Stone foundation sculpting suggests ashlar and rubble courses; mounting detail for the wheel axle and a gently angled sluice alignment are modeled so the wheel reads correctly when sited next to a carved channel or millpond feature. What you get: one printable 1:87 (HO) master STL including the wheelhouse and exterior water wheel with paddles and axle clearance. The wheel contains a modeled cut plane to enable separate printing or a single-piece print. Miniature Reality provides a single 1:87 master STL only — scale the master STL in your modeling or slicer tool to print at other scales. Printing guidance: orient the roof ridge parallel to the build plate, print the wheel separately for the cleanest results and consider a brim under the foundation for adhesion. Scenic tips: add a short millrace, low stone walls, barrels, sacks or timber stacks to emphasize function. This compact mill makes a strong rural focal without taking excessive layout space.

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.