The design is based on two principles giving the lamp it's unusual look:
- first the waveguide based on total reflection of light inside a material
- the possibility to bend acrylic glass if it's heated to a certain degree
In order to get a defined curvature, I made a (negative)-form out of plywood. After putting the acrylic glass into an oven at approx 170 °C for 10 minutes (according to the thickness: 1 min per 1 mm thickness) it can be bend with ease. Be sure to carry gloves and mind the fact, that it will take some time to cool down. In this time the material is still soft and can lose the shape.
As a light source, I used the Ledberg Spotlight from IKEA. I stripped the all the plastics and cut out the little diffuser. The base is made from walnut, but any other hardwood would do, even plywood of sufficient thickness. A circle of funky foam gives the lamp a secure stand.
The cutting was done using my desktop cnc-machine by Stepcraft. Acrylic glass should be cut with a single flute endmill. For the hardwood, I used a 3 mm end mill specially intended for cutting wood.