This listing supplies a single HO (1:87) master STL prepared at Miniature Reality's HO master scale of a generic mid-20th-century compact farm tractor sculpted for clarity on small-scale layouts and dioramas. The sculpt communicates the tractor's defining silhouette: a narrow-front wheel arrangement with closely spaced slim front wheels and a single-piece front axle; large, deep-tread rear wheels with visible hub plates; a gently rounded engine hood with simplified side panel shaping; an upright vertical exhaust stack; a molded single driver seat and steering wheel with short steering column; and a stout rear hitch lug sized for glued-on implements.
Design intent and visible features: the geometry emphasizes readable forms at HO scale rather than micro-detail. Wheel treads and fender curvatures are modeled with slightly exaggerated relief so they remain visible after priming and weathering on a layout. The hood and side panels include simplified seam lines intended to catch washes; thin elements such as the exhaust stack and steering column have been modestly thickened to improve print reliability without compromising the recognizable profile. The rear hitch is modeled as a stout lug with a small clearance gap to accept glued hobby implements or light modification by advanced users.
Included file and scaling note: Miniature Reality provides one 1:87 (HO) master STL file only. If you need a different printed size, scale the HO master in your slicer or 3D software before printing; no additional pre-scaled STLs are provided.
Print guidance: the mesh was optimized for hobby printing at small scale. Resin printing (SLA/DLP) will generally yield the finest detail; recommended layer heights 0.03–0.05 mm. For FDM printing, use a small nozzle (0.4 mm or smaller) and layer heights around 0.08–0.12 mm where your printer supports it. Orient the model to minimize visible supports under fenders and along the hood—angling the tractor slightly nose-up or resting the chassis on the belly can reduce bridging beneath the fenders. Wheels and body are modeled to print as a single-piece assembly in this master; advanced users may choose to split wheels and body for multi-material prints or easier painting. Thin elements have been thickened modestly but may still be fragile if printed extremely small; consider additional reinforcement or slightly increased shell settings for FDM.
Finish and hobby techniques: the sculpt is intended to accept standard weathering workflows. Apply a dark wash to settle into wheel tread and panel seams, drybrush fender edges and hub plates to bring out curvature, and add subtle streaks to the exhaust stack and panel joins for an in-service look. The simplified grill and panel details were chosen to accept paint and weathering while avoiding loss of definition at HO scale.
Prototype sizing and confidence: legacy metadata estimates the prototype at approximately 3000 mm long, 1500 mm wide, and 1600 mm tall in real-world dimensions; at 1:87 this corresponds roughly to 34.5 mm length, 17.2 mm width, and 18.4 mm height. These are visual estimates with low confidence—use them as general guidance when sizing elements on your layout.
Limitations and provenance: this sculpt reads clearly as a compact vintage farm tractor but is not tied to any manufacturer, model designation, or exact year. The asset originated from a legacy MeshRef project where stage1 metadata carried low provenance confidence. The sculpt is intentionally generic rather than brand-specific; if you require an exact-match replica of a particular make or year, request a custom revision before purchase.
Intended placement and use cases: ideal for HO model railroading on rural branchline layouts, farm and countryside dioramas, tabletop scenery, or small shelf displays. Park it beside a barn, attach it to a light trailer or implement, or partially weather it for an in-service vignette. The rear hitch lug accepts glued implements or light modification for custom attachments.
What is not included: physical prints or pre-scaled STLs for multiple scales. This sale is for a single HO master STL file only.
Designed at 1/87 base scale - convert to print at any scale.
MR-ID: mr_25b047_5a8408e0
We use ai to "paint" our models for display. All other renderings and original model are done in 3dsMax 2025 and represent close to 10 years of 3d model work.