Introduction: LEGO Robots： Built With 3D Printing

By
  1. Goal: Design and create a LEGO-style robot using 3D-printed components.
  2. Why: While traditional LEGO parts are versatile, custom-made modules enhance creativity and address the limitations of pre-existing pieces.
  3. What It Is: A LEGO-style robot composed of six modules (body, head, palms, arms, legs, base).
  4. How to Achieve It: Use 3D design software to create the modules and a 3D printer to bring them to life.


Supplies

Materials and Tools

Materials:

  1. 3D Printing Filament:
  2. PLA or ABS material (depending on the requirements).
  3. Painting Tools:
  4. Spray paint (e.g., acrylic) or other coloring tools (optional).

Tools:

  1. Design Software:
  2. Onshape (free online software).
  3. 3D Printer:
  4. Bambu Lab P1S 3D printer.
  5. Auxiliary Tools:
  6. Clippers, sandpaper (for trimming and smoothing edges).

Step 1: Design the Components

Use 3D design software to create the six parts:

  1. Body: Design the main structure, including slots for attaching other parts.
  2. Head: Create a stylized head (optional features like eyes or antennas can be added).
  3. Palms: Design palms capable of gripping objects or components.
  4. Arms: Use cylindrical or jointed designs with connection points.
  5. Legs: Ensure the leg structure provides stability and matches the base.
  6. Base: Design the foundation to support the entire robot.


Attachments

Step 2: Prepare for Printing

Export the designed parts as STL files.

Configure slicing software (e.g., Bambu Studio) with the following settings:

  1. Infill: 20%-30% (light yet sturdy).
  2. Layer Height: 0.2mm (for clear details).
  3. Supports: Add as needed based on the design.


Attachments

Step 3: Printing and Post-Processing

Use the 3D printer to print all components.

After printing, use sandpaper to smooth rough edges and ensure the connections are seamless.

Step 4: Painting and Detailing

Paint or color the components as desired.

Add logos, patterns, or other details to enhance the appearance.

Step 5: Assembly

Assemble the parts to form the robot.

Test the mobility and stability of each joint.

Step 6: Testing and Improvement

Adjust the design based on the test results.

Reprint and refine components as needed.