Make a coaster that lights up when your cup or glass is placed on it. via instructables
For a project at school , we had to design a light fixture that uses pleated plexiglass.
In the beginning it was thought to make a coaster that lights up when the glass is empty or nearly empty, so can be used in a restaurant, cafe, … the coaster to see if anyone wants to order a drink.
For this, however, would require a non- gate in order to detect this. This I have unfortunately not enough knowledge to do this . Therefore, it was chosen to highlight the luminaire as a glass is placed on the coaster .
In this Instuctable I show how I made the coaster .
Laser files are added later
This is a list of the materials used
Plexiglas protective cover
MDF sides lasered
MDF top and bottom
Thin wire (painted)
Button cell battery holder
Button battery ( CR2430 )
This is a list of used tools
Needle nose pliers