General drawing of a toroidal transformer core, i.e. totally round like a very thin donut, inner hole radius 70mm, outer core radius 110mm 3D printed with complex internal geometries (like the second image). The core features fractal structures or intricate internal lattices that optimize the magnetic field flux (like the black and white image using the sierpinski triangle). The outer surface of the toroid is smooth, while the internal structures show intricate interlocking patterns reminiscent of natural fractals or advanced material distributions (image 2). The background is dark and focuses attention on the complex design of the core, highlighting the texture of the material and the complexity of the internal structures. The image should capture innovation in the use of 3D printing technology for electrical components, emphasizing efficiency and advanced design. Use the black and white image for the shape and the second image for the finishing of the final image. Towards the center the pattern is very tight and becomes looser as it moves outwards. --ar 10:9 --style raw --stylize 250