This idea consists of a rope and a balance on the upper part of the rope. The idea is that Henk can climb the rope and see his weight. The advantage is that the system is very compact. This idea is not possible for Henk because of two reasons:
- The muscles under his waste are not enough developed to support the weight of his legs. This could injure the muscles.
- It's very difficult to 'land' back in the wheelchair. When the rope is above the wheelchair, Henk would land with his feet in the chair. When the rope is in front of the wheelchair, Henk would land in front of the wheelchair.
Prototype 5 is a plate to place under the front legs. There is also a small strip to put under the back legs. There is also a button to put the display back on.
Prototype 4 is a plate that can be rolled in one direction, when it's rolled out it's stiff in the other direction. When rolled out, the scale has the shape of a plate. This can be used with both wheelchairs and normal chairs.
We found a cheap scale in a 'Blokker' store. There are 4 seperate pressure sensors in it. These can be used to put under the legs of a chair.
