The use of wheelchairs that are not adapted to the needs of the patient is not such a marginal problem as it seems. First of all, this type of movement is not used only by strong people, but often these are weakened due to illness, surgery or old age. The handcart requires either strength and endurance, or the other person who will push it. This significantly interferes with independence, and indirectly - in the well-being and quality of life of patients. However, electric vehicles that do not require the patient to spend more energy than the one necessary to manipulate the joystick are quite expensive. For example, in Poland, a hand-made trolley costs about PLN 400, additionally being subject to refunds, while its electric equivalent is about a dozen or so thousand zlotys.
High school students in Israel have repeatedly proved their robotics skills in the arena of international competitions. Now students from Ra'anana in preparation for the FIRST Robotics Competition have developed a project that equips a hand-held electric trolley. The drive can be installed completely without interfering with the equipment itself, which is especially important for rental cars. For this project, of course, you need access to the 3D printer and the parts you need, but it does not require much experience in the field of electronics.
The prototype was made of PLA ++ from Breathe-3DP on the current Printrbot Play druk 3d printer in the school studio. High school students received funding from the Ra'anana municipality to realize their idea. What's more, they made it available on an open-source basis. Thus, the project seems to go far beyond the competition framework, perhaps contributing to the quality of life of a large group of wheelchair users.