2015-10-13 (Tu) Wrist Mounted Chording Keyboard

Modeling was done based on the custom enclosure module written a month ago. Measurements were taken to hold the controller and terminal board. Measurements were also taken to pass wire through the box. Holes were made for the servo cords and salvaged Ethernet cord. Four holes were made for the servo wires so they could be passed through the same side or opposite sides, whichever looked better.

Spinning view of model

Internal space was kept to a minimum and components did not fit. Screw sockets took too much space inside so the enclosure was not usable for this project.

Custom enclosures being made were cuboids with internal sockets to accept a screw to hold the lid which was a simple rectangle. This design, which was blatantly copied from ffleurey and his Thingiverse model, doesn’t preserve valuable internal space. For some projects this is fine.

Wires fit well but the electronics to go inside did not fit

Revisions should be made to the custom enclosure module so the screw sockets can be made external which would preserve the internal space. On the 3D Printed Automatic Tea Maker project the bolts were external which required long bolts but added an aesthetic. External screw holes using a slope, like those currently internal to the custom enclosure, could be a second option.

Electronics and enclosure

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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2015-10-12 (M)