Future Improvements

Upon reflection of our project following symposium, we determined a few main areas of improvement that could be implemented in a hypothetical iteration of the crutch. To start, there are multiple ways to improve the aesthetics of the crutch. We can use PCBs in the future to save space, use smaller components (substituting the Arduino Nano with an alternate micro-controller), and feed the wires through hollow tubing instead of leaving them exposed.

Next, a critical improvement is weight reduction. This can be done through the use of a smaller motor (NEMA 17 instead of NEMA 23). If a smaller motor is chosen, then a smaller motor controller and battery can be used as well. This will save both weight and space. In addition, the lighter materials (like carbon fibre) can be used instead of aluminium.

Following, we can improve the ease of use of the crutch by adding a control system for the deployment angles of the crutch. Currently, the crutch is best used when the legs deploy perpendicular to the ground. However, it would be convenient to be able to deploy from multiple angles.

Lastly, pressure sensors with higher force ratings and designed to be more customised to the shape of the crutch can be used.