A product development and production project was carried out that could combine physical therapy of movable joints such as arms, shoulders and wrists, and that could be used for intensive use such as hospitals and for different types of people. Our customer HoustonBionics was redesigned for the hospital based on the mechanical system he developed. Modular mounting of damping systems, which we call dampers, enable power dissipation at different levels, has been provided. Seats and adjustment mechanisms that can be adapted to the use of different types of people were developed and tested in hospitals for customer experience. With the experience gained in this field, a more modular, personalized, much smaller, portable and even wearable product was developed and field tests were started.