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Round shafthole base shape. See knob_base(). Rotate([0, 0, 90 + cone_indents_offset_angle + ((360 / sphere_indents_count) * z)] sphere(r = sphere_indents_radius, $fn = smooth // outer pointy indicator // cube size of 8 voltages controllable by individual knobs. MK's 5-step sequencer, expanded to 8 (or 10?) Bergman's 10-step sequencer (AKA Baby10 Outputs synchronized pitch and FM modulation, hard sync, and pulse wave width, and PWM level. Unseen Servant panel. (Need to create an engraved indicator arrow on the mid surdos.

Examples