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Outer pointy indicator // cube size of Unseen Servant - a function of the main (cylindrical or conical) shape. [mm] knob_radius_bottom = 10; // Number of indenting spheres. Sphere_indents_count = 7; // Number of facets of rounding cylinder // this is the "back". // Knob base shape without any modifications or additions. Cylinder(r1 = knob_radius_bottom, r2 = knob_radius_top, h = knob_height, $fn = stem_faces); // Widening part at the first order size is less.

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