Using 3D printing, the teams designed and fabricated active ILMs by integrating SMAs, specifically nickel-titanium, which can recover their original shape after deformation by changing temperatures.

That nut is called a "captive" nut because once it slides in, it can't spin. That makes it easy to tighten the bolt on the outside of the shelf support. I used TinkerCAD to design this up.

Most 3D printing plastics melt at around 200-250 °C. The glass bulb of a general service incandescent lamp can reach temperatures between 200 and 260 °C, and halogen bulbs can reach up to 500 °C.