The work was done by reference with pinterest (Post world is called). I liked the idea of a plumbing pipe "crossed" with a mechanism that drives circular saws) Logically, I could not fully think of this device, and I was not a conceptualist) I did geometry strictly according to ref. I picked up similar materials from the ref. I didn't get into the materials somewhere, but for me this is a big breakthrough in creating materials in Substance Painter. ≈12000 triangles. -2*4096 textures sets.