Embedded Files
UCSD Smart Wheelchair Overview
CAD Model:
Final Design
The primary objective of our part in the project is to create an arm bar that is safe and comfortable for the user while also serving as an attachment point for a depth camera. At the same time, the design has to be simple enough that someone with no engineering experience could assemble it.
Background
The UCSD Smart Wheelchair is a research project that is sponsored by Jack Silberman and led by undergraduate students to create an autonomous/semi-autonomous wheelchair that can navigates users's homes. This wheelchair is intended to be a low-cost, easily fixable alternative for more economical users, especially ones in less industrialized countries.
Objective
Components:
The dampers (in blue and green) were printed out of Ninjaflex, a thermoplastic polyurethane that remains flexible after printing:
The camera mount, in gray and red in the middle, is printed from regular PLA filament and is designed to accommodate not only the camera but also the dampers and the latch mechanism.
The latch, arm bars, and hinges were all purchased parts. The latch is a common door latch found online, the arm bars consists of steel pipes and a 45 degree pipe fitting found at Home Depot, and the hinges were ordered from the wheelchair manufacturer. These components should be accessible to end users that may have to assemble their own Smart Wheelchair.
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