2015-10-15 (Th) Wrist Mounted Chording Keyboard

A new model was created from with all new code. The purpose of  all new code was to try to eliminate the troubles which occurred yesterday concerning an inability to properly slice a model for use in the 3D printer. The problem seemed to come from subtractive shapes, or shapes used to eliminate from another shape. I made a demonstration below where a moving sphere subtracts from a cube. In one example the sphere is visible as a translucent red while in the second version the sphere is only noticeable when it is subtracting from the cube.

Demonstrations of subtraction

Modeling with new code didn't fully resolve the issue and the final model printed with some of the columns at the corners taking an insubstantial amount of space inside the box. The first print and the model below had a lid which was too small. A second print of just the lid was made. Components fit inside the enclosure well.

Model of enclosure and small lid

Downloadable Files:
To do:
  • Wrist mount
    • Terminal board
      • Input voltage
        • USB
    • Make base for keyboard
      • Spacers 
      • Magnet mounts
    • Integrate:
      • Enclosure for each controller
        • Potentiometer access
      • Activation switch
    • Debug 
    • Test
    • Refine
    • Repeat
  • Write instructions
    • Compress and link to all files
      • OpenSCAD files
      • STL models
      • Arduino code 
    • Make diagram with every part labeled 
    • Schematic for servo controller
The rest of the posts for this project have been arranged by date.

First time here?
Completed projects from year 1.
Completed projects from year 2.

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2015-10-14 (W)