The helicoid geometric surface was explained by Euler in 1774 and owes its name to its resemblance to the helix. It should be noted that the helicoid is also a ruled surface, i.e., a surface formed by the movement of a line. It can be said that for every point on the surface there is a line passing through it. In short, if you are interested in mathematics or want to create a math-art 3D model using one of these helicoid surfaces, feel free to download the 3D models offered here. Believe us, we will be very happy if at least some of you do it, and if you manage to practically use any of our 3D models, there will be no end to our happiness!