ISRO SSLV-D3 – Detailed 1:72 Multicolor Rocket

A detailed modular 1:72 display model of ISRO's SSLV-D3. This model belongs to a six-vehicle ISRO collection; every rocket uses the same scale so they can be displayed together accurately.

MODEL DETAILS

- Finished height: 472.2 mm

- 13 validated watertight STL files

- Largest single part: 198.9 mm

- Compact four-stage layout with detailed bands, casing joints, cable ducts and mission markings.

MULTICOLOR MARKINGS

The Indian flag, vehicle names, ISRO logo and mission markings are separate glue-in tiles. Each tile fits a matching 1.20 mm recess. The white carrier is 0.78 mm and the raised color/lettering is 0.42 mm, producing a nominally flush face. Thin bridges keep every insert connected during printing—cut them after printing, dry-fit, then use a tiny amount of thick CA glue or contact adhesive. No colored region is designed to float unsupported.

PRINT SETTINGS

- Bodies: 0.4 mm nozzle, 0.16 mm layers, 3–4 walls, 12–18% gyroid infill

- Fine markings: 0.2–0.25 mm nozzle, 0.08–0.12 mm layers

- Upright cylindrical sections: 6–10 mm brim

- Engine bells: print mouth-down

- Marking plate: print flat with the decorated face upward

- Enable thin-wall detection for small lettering and fine lattice/details

- Supports are normally unnecessary in the recommended orientation

ASSEMBLY

Print the fit gauge and marking recess coupon first. Assemble the keyed stage sections from the bottom upward. Dry-fit all recessed inserts before gluing. Real filament shrinkage and printer calibration vary, so the included test pieces are the final authority for fit.

FILES

Only the required printable STL parts and the aligned multicolor 3MF marking plate are included.

This is a printable display interpretation based on published ISRO dimensions, not flight-hardware or manufacturing data. AI tools assisted the CAD development; the geometry was manually reviewed and every supplied mesh was validated for watertightness, manifoldness, connected components and enclosed volume.