1. About
  2. Final Project

    3. Weekly Assignments

  3. Week 1 - Project Management
  4. Week 2 - Computer Aided Design
  5. Week 3 - Computer Controlled Cutting
  6. Week 4 - Embedded Programming
  7. Week 5 - 3D Scanning & Printing
  8. Week 6 - Electronics Design
  9. Week 7 - Computer Controlled Machining
  10. Week 8 - Electronics Production
  11. Week 9 - Molding & Casting
  12. Week 10 - Output Devices
  13. Week 11 - Mechanical & Machine Design
  14. Week 12 - Input Devices
  15. Week 13 - Networking & Communications
  16. Week 14 - Interface & Application Programming
  17. Week 15 - Wildcard Week
  18. Week 16 - Applications & Implications
  19. Week 17 - Invention, IP & Income
  20. Week 18 - Project Development

Final Project - Soft Connection

For my Fab Academy final project, I propose creating a stingray-like creature—an alien organism that combines soft robotics and mechanical movement. I will design the creature in 3D, 3D print a PLA mold, and cast it in silicone. To achieve movement, I will insert two pump valves on each side of the ray, connected to an electronically controlled pump that I will program to inflate and deflate the structure.

Additionally, the project will feature a mechanical arm composed of three thin segments, CNC-cut from a 2D SVG file and assembled with bolts. A tensioned wire running along the arm will contract and release, enabling movement. At the tip of the arm, a tiny scalpel will make precise incisions into the surface of the Ray’s body, introducing an additional layer of interaction and transformation.

Final Project Concept Sketch

These sketches represent my best attempt at visualizing the construction and function of the project. I acknowledge that my engineering knowledge is still developing, and these ideas may evolve as I experiment with materials and prototyping.

I initially wanted to create the soft inflating creature out of agar or gelatin. However, after researching (especially through Fabric Academy documentation), it appears that gelatin/agar may not properly inflate and is much harder to get working. Therefore, I will use silicone. Since the mold will be reusable, I will also experiment with casting various biomaterials into it.

2D and 3D Modeling

3D Render Simulation Render

Materials

Qty Description Price Link
1 Silicone Rubber (Ecoflex 00-30) $35.00 Order
1 PLA Filament (for mold) $22.00 Order
1 Adafruit ESP32 Feather $19.95 Order
1 Mini Air Pump $15.00 Order