ISRO SLV-3 – Detailed 1:72 Multicolor Rocket

A detailed modular 1:72 display model of ISRO's SLV-3, scaled consistently with the companion ISRO launch-vehicle collection.

CORRECTED GEOMETRY AND PERIOD LIVERY

- Finished height: 305.6 mm at 1:72 scale

- Correct 1.0 m first-stage diameter transitioning to the 0.8 m upper stack

- Corrected 0.8 m diameter × 2.45 m payload fairing and nose profile

- White and period burgundy colour scheme based on the selected reference livery

- Burgundy shoulder sleeve, stage bands, keyed fins and oxide-red trim

- Detailed casing joints, cable ducts, scaled surface bands and graphite nozzle

- Circular two-colour display base with black inset and tapered hollow pedestal

FILES

- 16 validated watertight STL parts, supplied directly (no ZIP)

- 1 aligned multicolour 3MF marking plate

- Separate body, burgundy livery, fins, nozzle, markings and two-colour stand parts

MULTICOLOUR RECESSED MARKINGS

The Indian flag, ISRO emblem, SLV3 and INDIA lettering are separate glue-in parts sized to matching recessed areas on the rocket. The flag and emblem sit on the white upper-stage region; the burgundy fairing remains clean. Thin connecting bridges keep every marking region printable as one plate, so no coloured island is left floating. Cut the bridges after printing, dry-fit, then use a small amount of thick CA glue or contact adhesive.

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: use a 6–10 mm brim

- Nozzle: print mouth-down

- Marking plate: print flat, decorated face upward

- Keyed fins: print the supplied connected set flat

- Supports are normally unnecessary in the recommended orientations

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

ASSEMBLY

Print the fit gauge first. Assemble the keyed stage sections from the bottom upward, fit the burgundy sleeve/bands and keyed fins, then dry-fit all recessed marking inserts before gluing. Real filament shrinkage and printer calibration vary, so the fit gauge and test pieces are the final authority.

This is a printable display interpretation based on published ISRO dimensions and period reference imagery, 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.