top of page
1/1
The original design of the prosthetic consisted of a hinged wrist joint. In order to allow for more degrees of movement, the design was modified into a ball and socket joint. To accomplish this, the gauntlet was modified to include a socket that would allow the wrist to rotate left and right. It also included a cross-sectional socket that allows the wrist to still maintain its up and down rotation. For more flexibility in the wrist section and a more adaptable wrist attachment, the gauntlet had sections that were held together with elastic fibers rather than rigid plastic. The palm was then modified to include a ball that could easily slide along the sockets located in the gauntlet. More velcro mounting sections had to be included in the palm design in order to maintain proper fit between the ball and socket during movement.
1/2
Analysis
Optimization
The original dimensions of the prosthetic hand were for relatively smaller wrist dimensions than was listed for those of the age range I was designing for. The current hand modifications are geared towards female children ages 9-14 years of age. The dimensions of the original design were roughly half the size of the necessary requirements for the new modifications. In order to accommodate that difference, all the CAD programming had to be scaled up by two. This change allowed the dimensions of the pre-designed fingers and pins to work with the new design without any further modifications.
Official Report
Re-Design to E-Nable
BUILD
Hand on this side is the original design
Hand on this side is the modified design
bottom of page