led hourglass
thingiverse
A person who flips a switch that makes a LED light come on and then go off. https://www.youtube.com/watch?v=dv1nN_5CfAg
Download Model from thingiverse
With this file you will be able to print led hourglass with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on led hourglass.