Photopolymer Resin Model Aircraft Industrial Manufacturing Process

1. Component Design
Dismantled according to the structure of a real aircraft into: integrated fuselage, detachable wings, and independent engine components.
A 0.3 mm assembly gap is reserved for moving parts.
2. Printing Process
Main components: grey industrial resin DLP printing.
Transparent components: secondary curing transparent resin.
Post-processing:
Isopropyl alcohol ultrasonic cleaning
Cured at 40°C for 2 hours
3. Surface Engineering
Base treatment:
Overall sanding with 800-grit waterproof sandpaper
Filling layer patterns with putty
Coating stage:
Primer → water decal → matte protective coating three-layer system
Metal components first sprayed with black primer
Weathering techniques:
Pencil outlining to emphasise panel lines
Pastel simulation of exhaust stains
4. Quality control standards
Calipers to measure critical dimensions
Strong side lighting to inspect paint surface
Landing gear load-bearing test