Ever since I laid my hands on gbords.ca Ginny keyboard I felt like there was some room for improvements. This is my attempt at making it a bit better – kbjunky.
The main difference is that the Chordie supports a trackball. There are 3 mouse buttons on the left side and the trackball is wired through SPI interface. The mouse buttons can also be used as part of the chords or for switching layers which opens a wide spectrum of possibilities like scrolling with the ball etc.
The trackball part is optional though, the keyboard setup performs well with touchpads like Apple Magic Trackpad or can supplement any commercial trackball.
To ensure an easy building process all parts just clip in and only 2 screws are needed to secure the trackball sensor.