what is the best handle to put on a crank for people with arthritis to use?

Question

I don't have arthritis but am designing an easel for people who do. so far in final solution I have removed the wing nuts and replaced them with cranks. so it is easy to reposition without moving the canvas or getting up.

you can sit or stand (even in a wheelchair) because the mechanism is placed on a side table like unit. Also there is plenty of storage space and a wide area to hold materials.

Also any feedback I can get is most appreciated. Thanks everyone.

Answer 1

1. The best place for a crank control would be roughly near the knee while seated. It offers a pretty neutral position for people to reach without stress on the shoulder, elbow, or wrist.

2. Crank? Have you looked at a power unit? You can usually use a cheapo power screwdriver unit as a driver, and re-wire the trigger to an easy-access switch.

3. Have you checked if the product is already made? I believe I have seen these- although they were pretty expensive.

4. Just FYI- I don;t know what plane of movement you are thinking of, but if it can move up and down AND left and right it will be a LOT more useful.