Four-Engine Airliner — Level Painted Display Model

OVERVIEW
Four-Engine Airliner — Level Painted Display Model is supplied as a digital display and model-making project. The illustrated arrangement is a presentation of the represented design, not proof that a physical miniature has been printed, assembled or tested. Check the actual geometry and inventory before planning a build. No additional mechanical operation, working propulsion or flight capability is promised.

DOWNLOAD CONTENTS
The package preserves every attached portable geometry variant and the supplied STL geometry found in the retained packages. Repeated identical resources are stored once inside each complete ZIP. Geometry filenames are neutral identifiers. The file manifest lists the current downloadable geometry, sizes and integrity hashes. Earlier preparation records and reference photographs are replaced in the public package by this English guide and the existing completed-display image. No original-name correspondence is included.

GEOMETRY AND ASSEMBLY
Only non-geometric labels and optional header text are changed in the geometry files. STL triangle records and colour information are retained; OBJ vertices, faces, normals, texture coordinates, smoothing declarations and vertex colour numbers are preserved where present. The inspected presentation does not certify watertightness, wall thickness, independent printability, part fit or articulation. Separate variants can represent different inspection or display arrangements; review each file before combining parts.

PRINTING ADVICE — UNTESTED
Confirm slicer units, intended dimensions, minimum wall thickness and build volume. Inspect open edges, intersecting surfaces, thin details and disconnected components. Repair or thicken a working copy where necessary. Orient delicate projections to reduce damage during support removal and place supports where they can be reached. Resin layers around 0.03–0.05 mm or FDM layers around 0.12–0.20 mm are conditional starting ranges, not tested presets. Print a representative fragile section before committing to the complete project. Electronics, motors, fasteners, adhesives and other hardware are not implied by a render.

SCALE AND DIMENSIONS
No physical scale is certified solely from the file name or image. Measure a known dimension after confirming units. For uniform resizing, divide target length by current measured length and multiply by 100. If a native 1:N scale is independently established and the desired scale is 1:T, use N divided by T multiplied by 100. Recheck thicknesses, clearances and support access after resizing.

FINISHING AND PRESENTATION

Untested source geometry. The level 3MF is normalized for viewing only. Use the retained original STL and verify physical units, dimensions, thin features, mesh validity and printability in your slicer.

Prepared for display and download. No physical print has been certified.