~/talk

3D printed Bionic Hand a little IOT and a Xamarin Mobile App

Talkat Build Stuff 2021 · 2021-11-17..11-19· [embedded-and-hardware, iot]
slides:none on file

Repurposes OpenBionics designs and prints articulated components on a Prusa MK3 while molding soft fingertips; replaces sticky EMG pads with embedded force sensors and drives four linear actuators from an Adafruit Feather BLE plus motor controller, stepping 5V to 12V for motors. A Xamarin Forms app programs grips over Bluetooth (five presets, custom sequence builder) and stores settings; motors and battery are biggest costs, total parts run about £500 versus NHS/retail thousands, and the hand reliably performs Xbox triggers, carrying and pointing.

AI-written summary · about

  1. 0:00Introduction and speaker background
  2. 1:28Meet Cayden and the problem
  3. 6:28Project origins and early attempts
  4. 10:03Discovering open-source solutions
  5. 13:55Upgrading the 3D printer
  6. 16:01Prototyping and refining the design
  7. 17:043D printed parts and assembly
  8. 19:09Cost breakdown of materials
  9. 20:13Electronics and muscle sensors
  10. 25:47Improving the electronics
  11. 29:15Finding better sensors
  12. 31:03Circuit design and build
  13. 32:27Programming new grips
  14. 34:32Xamarin mobile app development
  15. 37:21Final assembly and testing
  16. 38:06Cost reduction and future plans
  17. 39:49Live demo of the app and hand
  18. 43:03Next steps and global impact
  19. 44:05Q&A and closing remarks
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