Preliminary Design Review
Proof of Concept
Risk Reduction
Frame was replaced with 80/20 frames for adjustability. With same dimensions as previous prototype, frame is still slanted downward creating discomfort for Bodie.
adjustment:
- 80/20 aluminum frame
- adjustable positioning
80/20 project model
Frame is upright and parallel to ground with proper adjustments. Bodie's back is more or less straight giving him better posture.
adjustment:
- harness moved forward
- hip to harness 14”
80/20 project model
Problem Definition
Bodie in industry wheelchair (Eddie's Wheels). It was assessed that although bulky it was most comfortable when Bodie is in the standing position. Large turning radius and waddling in wheelchair resulting in slower movement.
Bodie in Mae 156B prototype. Much faster, smaller wheels. Looser saddle which allows frame to "waddle" with Bodie's walking, presenting a more smoother motion.
Brake with rubber stoppers allows Bodie to use his natural motion of backing up to activate folding of device. Spring mechanism along with the aid of Bodie's upper strength allows Bodie to transition back to a standing position. Visibly, it can be seen that an over-strenuous effort has to be exerted in order to activate the mechanism.
Bodie in the MAE 156B prototype. Frame is slightly slanted downward implying that there is additional tugging at the harness so Bodie can keep the frame upright. Adjustability and weight distribution along the frame can help alleviate these issues of discomfort.