Production process of demonstration model for egg hatching process
1、 Material preparation stage
(1) Core materials
Transparent shell: Made of high transparency acrylic sheet, laser cut into goose egg shape, hand polished edges to arc transition
Internal filling material: epoxy resin AB glue as the base, mixed with colorants to create biomimetic colors (lemon yellow for egg yolks and reddish brown for blood vessels)
Structural support: ABS plastic base, built-in LED warm light group, matte surface treatment
(2) Auxiliary materials
0.3mm red nylon thread (simulating blood vessels)
PLA material 3D printing embryo prototype
Shadowless adhesive (bonding transparent shell and base)
White matte paint (base coating)
2、 Staged production process
(1) Fertilized egg stage (the first model)
Nano anti fingerprint coating sprayed inside the acrylic shell
Mix yellow epoxy resin adhesive and inject it into the shell to a height of 2/3
Central embedded 5mm diameter black embryo disc simulation, cured for 24 hours
Install LED lights at the bottom, with wires hidden inside the base
(2) Embryonic development stage (the second and third models)
Phase 2: Implant a black circular embryo ring into a transparent resin substrate, wrapped with colorless colloid to simulate egg white
Phase 3: Manually lay out a red nylon thread vascular network, fix the 3D printed embryo prototype in the center, and use centrifugal pouring technology to ensure uniform structure
(3) Mature embryonic stage (fourth model)
Silicone rubber flipping mold to produce complete embryos, filled with flexible materials inside
Paint feather texture and scale details on the surface, and spray orange fluorescent paint to enhance the visual effect
Reserved air chamber observation window on the shell, simulating the respiratory structure in the later stage of incubation
3、 Surface treatment process
Transparent shell: Wet polish with 800 mesh and 1500 mesh sandpaper in sequence, and finely polish with a wool wheel until the light transmittance meets the standard
Color processing: gradient dyeing method is used to create egg white layering effect, and the blood vessel lines are pre soaked in colorant and dried for 24 hours
Base processing: Annealing of injection molded parts to eliminate internal stress, electrostatic spraying of white matte paint, and pasting of anti slip foot pads
4、 Assembly and Quality Inspection
The models and bases at each stage are bonded with shadowless adhesive, and the curing environment is controlled at 25 ℃ and 60% humidity
Power on test the lighting effect to ensure that the visibility of the internal structure is ≥ 95%
Conduct a 1-meter drop test to verify the drop resistance performance
The final packaging uses EPE pearl cotton lining, with accompanying instruction cards indicating developmental stage characteristics
