The resulting product increases useful desk space and allows for longer endurance in front of the computer by allowing a comfortable and adaptable seating position for the user. To buy a similar stand could cost you up to £200 and I have not found one yet with this function.
Step 1: Materials
I used 14 M8 x 80mm coach bolts, roughly 40 M8 washers, 14 wing nuts and several M8 nuts. This would cost roughly £6.00 in your local hardware store.
The orange elastic straps came from a pull up bar I bought but I am sure you can find an equivalent material to act as a spring such as a bungee cord. The idea came from my work lamp. It has 4 lengths of metal on 4 pivots to make a parallelogram, there is a spring diagonally across the frame. As the light is pulled over into position the downward force is increased, this is compensated by the spring resisting the deformation of the parallelogram. I have incorporated this feature into my design.
The main components are put together with the M8 coach bolts but the base and hanger are screwed together using 30 mm countersunk wood screws.
I used various tools throughout the build and I will highlight what I used and how I used it on each step.