If want to decorate your home with interesting decor, then this DIY 3D geometric wall art that you can make with a cardboard ...

There are many types of nets for the different 3D shapes. A net is made from polygons that can be folded and joined to make a polyhedron. Here is the net of a triangular prism. Why not see how ...

Early machines used a xenon bulb to project shapes ... 3D printer. Of course, an LED is a big large for a PCB trace, so he creates a 0.3 mm aperture by printing a mold and using it to cast epoxy ...