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The manufacturing of a star tetrahedron on a lathe is shown in detail. The star tetrahedron is a three-dimensional figure formed by the intersection of two Plato bodies - tetrahedrons. The tetrahedron is a regular triangular pyramid.
Such a voluminous figure - a star tetrahedron - I made another 9 years ago: • ЗВЁЗДНЫЙ ТЕТРАЭДР
I did not polish the star tetrahedron. This surface finish is obtained from under the cutter.
It is described and shown in detail how to make a star tetrahedron, its preliminary and final processing.
The star tetrahedron is made of a cube, that is, the blank for the star tetrahedron is a cube. How I did the cube will be shown in one of my videos.
For the manufacture of the star tetrahedron, special devices had to be made: a special rotating center, various mandrels for attaching the workpiece, a corner for the manufacture of these mandrels on a milling machine.
How I made these devices, I will show in my next video.
How I did the rotating center is already shown on my channel: • Как сделать ВРАЩАЮЩИЙС...
Strictly speaking, these products are not pure star tetrahedra, which should be formed by the intersection of two regular pyramids - tetrahedrons. These figures have additional elements. But then these products are made purely on a lathe.
By setting the cutting edges at different angles and changing the depth of cut, you can change the shape of these petals and get many different configurations.
Star polyhedrons are original souvenirs made on a lathe: • ЗВЁЗДНЫЕ МНОГОГРАННИКИ
Address of this video: • Изготовление ЗВЁЗДНОГО...
Maybe it will be interesting for you to watch the video in the “Unusual work on machines” playlist: • Необычные работы на ст...
See also the video in the “Balls. Sacred Geometry ”, which shows balls with inside polyhedra (Plato’s bodies) as well as balls for turning balls on a lathe: • Шары. Сакральная геоме...
You can admire the bodies of Plato and the starry polyhedra with illumination here: • ТЕЛА ПЛАТОНА С ПОДСВЕТ...
I invite you to my channel: www.youtube.co...