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{ module mounting_hole_m3(h=thickness, flange=8, style="nut"){ cube([flange, flange, h], center=true); if (RingWidth>0 cylinder(r1=KnobMajorRadius + RingWidth, r2=KnobMinorRadius, h=RingThickness, $fn=50, center=true); if (RingWidth>0 cylinder(r1=KnobMajorRadius + RingWidth, r2=KnobMinorRadius, h=RingThickness, $fn=50, center=true); if (RingMarkings>0 for (i=[0 : RingMarkings-1] rotate([0, 0, 90]) // To align a face with the multipliers here, tweak the variables themselves v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib h_wall(h=4, l=right_rib_x); // middle-bottom h rib // h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib // h_wall(h=4, l=right_rib_x); // middle horizontal rib // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // one more to mount the circuit board to, dead center v_wall(h=4, l=top_row-rail_clearance*2-thickness-15); // PCB holder pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1.

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