Between cases I work on the Pedalong mechanical design. This pedaled wheelchair for therapy of the elderly and stroke rehab patients plus for general leg strength improvement during hospital stays has held my interest for ten years and absorbed too much time and money. After around 15 prototypes built and many tested, I’ve settled now on a version not needing modification to the wheelchair, but simply coupling to its front frame. Tricycle-like, its single wheel steers and powers the forward motion. Slightly tricky mechanical design allows steering without changing direction of the pedal set.

Completing the CAD (helped by a Spanish graduate student) and building a mockup of the gear system to test durability of cast plastic gears will be complete by summer. Construction of an operating prototype will follow.

Anyone interested in the Pedalong project is invited to contact me at 773-239-3514 or rollin.dix@gmail.com