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Cones. Cone_indents_count = 7; // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; col_right = width_mm - col_right - thickness; // additives - labels, etc // one more to mount the circuit board to, dead center // pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer cylinder(r=hole_r, h=thickness*2); echo("Putting a hole for mounting screw: ISO 1481-ST 2.2x4.5 C or ISO 7049-ST 2.2x6.5 C (http://www.fasteners.eu/standards/ISO/7049/) || order number: 1757323.

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