EGG BOT robot printer Not extra hardware required

This 3D printing egg robot was created to remove one of the biggest frustrations in DIY builds: hardware overload.

Most machines rely on piles of brackets, specialty parts, and hidden extras that drive up cost and complexity. This design takes the opposite approach. The entire structure is engineered to be fully printable — with no structural hardware required.

• 2 × Stepper Motor 28BYJ-48 (5V) — for egg rotation and arm rotation
• 1 × Servo — for the main arm lift
 

There are no metal brackets, no specialty fittings, and no reinforcement parts. Every frame component, mount, support, and alignment feature is 3D printed. The only non-printed elements are the motors and basic fasteners needed to secure moving components.

The result is a clean, efficient machine that:

• Uses no structural hardware
• Requires no custom metal parts
• Keeps build cost low
• Prints nearly every component
• Assembles in a simple, logical sequence

Parts are designed to interlock naturally, with alignment built directly into the geometry. The layout keeps the mechanism accessible and easy to understand, making it ideal for makers who enjoy both building and modifying their machines.

If you want an egg robot that’s minimalist, printable, and engineered for simplicity, this design removes the barriers between printing parts and bringing the machine to life.