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(sqrt(pow(KnobHeight, 2) pow(KnobMajorRadius-KnobMinorRadius,2)))) - 90; DivotRadius = KnobMinorRadius*.4; // Primary knob cylinder for (i=[0 : RingMarkings-1] rotate([0, 0, i * (360/RingMarkings)] cube([RingWidth*.5, MarkingWidth, 2], center=true); cube([8, 3, KnobHeight], center=true); // Pointer1: Offset hemispherical divot sphere(r=DivotRadius, $fn=40); // Divot1: Centered cylynrical divot // Hole for setscrew // Make sure bottom ends at z=0 KnobMajorRadius+RingWidth) * 3, 20], center=true); } 3D Printing/Pot_Knobs/CustomizableKnob_spikey_with_divot.stl Executable file View File Images/IMG_6771.JPG Normal file Unescape working_height = height - v_margin*2 - title_font_size; Experimenting with more panel layout ideas left_rib_x = thickness * 2; right_rib_x = width_mm - 10 - center_adjust; center_col = width_mm/2; //mm third_col = 60.7-center_adjust; //mm cv_in = [input_column, bottom_row, 0]; c_tune = [second_col, fifth_row, 0]; square_out = [width_mm-h_margin, row_1, 0]; triangle_out = [third_col, fourth_row, 0]; //Fifth row interface placement square_out = [output_column, bottom_row, 0]; pwm_pot = [input_column + h_margin/2, bottom_row, 0]; fm_in = [h_margin+working_width/8, row_2, 0]; square_out = [output_column, row_1, 0]; triangle_out = [width_mm-h_margin-working_width/4, row_1, 0]; fm_pot = [input_column + h_margin/2, bottom_row, 0]; cv_in = [first_col, third_row, 0]; fm_lvl = [second_col, second_row, 0]; //Third row interface placement pwm_in = [input_column - h_margin/2, bottom_row, 0]; c_tune = [second_col, fourth_row, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_4, 0]; pwm_cv_lvl = [width_mm - h_margin - working_width/8, row_4, 0]; pwm_cv_lvl = [second_col, fourth_row, 0]; pwm_in = [first_col, first_row, 0]; //Second row interface placement fm_in = [input_column - h_margin/2, bottom_row, 0]; c_tune = [width_mm/2 + h_margin, top_row, 0]; left_rib_x = thickness * 1; right_rib_x = width_mm - hole_dist_side - thickness; // draw panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib // h_wall(h=4, l=right_rib_x); // one more to mount a circuit board.

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