For Easter, I wanted to make Pokémon-style surprise eggs for my daughter.

However, I didn't want to design different eggs.

Since my last project was already a parametric OpenSCAD project, I thought I'd create a Pokémon-style egg generator.

It then escalated a bit, as my generator offers almost endless possibilities for how the egg can look.
You can adjust the height, width, number of points, point size/distribution, etc…

The generator creates an outer shell and an inner shell, and each of these has a lower and an upper part.

The inner upper part is glued into the outer upper part, and the inner lower part into the outer lower part.

Because the inner lower shell is slightly longer than the outer one, the two halves can then be fitted together like surprise eggs.

• Parameter Explanation:
  • Most Important:
    • egg height: Outer height of the entire egg
    • egg width: Outer diameter
    • spot count small/big: Approximate number of each type of spot
    • spot color: Color of the inner shell (the outer shell is always white)
    • spot seed: Arrangement of large and small spots
  • Additional Settings:
    • outer thickness: Outer shell thickness
    • inner thickness: Inner shell thickness
    • shell gap: Distance between the outer and inner shells (the smaller the gap, the harder it is to open)
  • Detailed Settings:
    • Split & Join: Parameters to change the cohesion of the top and bottom shells
    • Small/Big Spot Sites: Size settings for the spot types
    • Spot Placement: Tolerances for spot distribution (not at the very top/bottom, leave the middle clear, spacing, etc.)