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@@ -35,7 +35,10 @@ capsule_radius = 5;
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capsule_height = 4.5;
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// distance between face of capsule and center of array
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-mic_radius = 10;
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+//
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+// for a 10mm capsule: with vertical legs -> 10.5mm min radius
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+// with horizontal legs -> 10mm min radius
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+mic_radius = 10.5;
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// dimensions of capsule holder connection legs
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// 4mm is too thin for the width, 5mm works better
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@@ -51,7 +54,7 @@ wall = 1;
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// dimensions of microphone holder
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mount_radius = 2.75;
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-mount_wall = 1.0;
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+mount_wall = 0.75;
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// height of mount
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mount_height = 30;
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@@ -190,12 +193,12 @@ module capsule (azimuth, elevation, mounts, twist, ridge, solid = 0) {
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leg_length = (mic_radius * tan(90 - angles[1]) - capsule_radius) * tan(angles[1]) - 0.2;
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slot_depth = leg_thick * cos (90 - (2 * angles[1]));
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translate([capsule_radius - leg_thick / 2 + fudge, - leg_width / 3,
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- - leg_length + capsule_height]) {
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+ - leg_length + capsule_height]) {
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difference() {
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- // thickness, width
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+ // the connection
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difference() {
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cube([leg_thick + leg_thick / 2, leg_width, leg_length]);
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- translate([-leg_thick / 2 + wall - fudge, 0, - capsule_height + fudge]) {
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+ translate([-leg_thick + wall - fudge, 0, - capsule_height + fudge]) {
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cube([leg_thick, leg_width, leg_length]);
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}
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}
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@@ -228,10 +231,10 @@ module capsule (azimuth, elevation, mounts, twist, ridge, solid = 0) {
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}
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}
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}
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- // make the hole for the capsule
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+ // make the hole for the capsule (also cuts leg overhang for vertical connectors)
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if (solid != 1) {
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- translate ([0, 0, 0]) {
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- cylinder(r = capsule_radius + fudge, h = capsule_height, $fn = facets);
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+ translate ([0, 0, -capsule_height]) {
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+ cylinder(r = capsule_radius + fudge, h = capsule_height * 2, $fn = facets);
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}
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}
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// remove any extra connecting beam material from the face of the holder
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@@ -252,7 +255,7 @@ module capsule (azimuth, elevation, mounts, twist, ridge, solid = 0) {
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// wall: thickness of cylinder wall
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// separation: height of mount with respect of the microphone assembly
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-module mount (angles, wall, separation) {
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+module mount (angles, wall, separation, solid = 0) {
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cone_height = 5;
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translate([0, 0, -(separation - 0)]) {
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difference() {
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@@ -262,7 +265,9 @@ module mount (angles, wall, separation) {
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difference() {
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cylinder(r2 = mount_radius_capsule, r1 = mount_radius + wall, h = cone_height, $fn = facets);
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// make the hole for the mount (* 1.5 to cut the ridge as well)
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- cylinder(r2 = mount_radius_capsule - wall, r1 = mount_radius, h = cone_height * 1.5, $fn = facets);
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+ if (solid == 0) {
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+ cylinder(r2 = mount_radius_capsule - wall, r1 = mount_radius, h = cone_height * 1.5, $fn = facets);
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+ }
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}
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}
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translate([0, 0, -mount_height]) {
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@@ -279,16 +284,18 @@ module mount (angles, wall, separation) {
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capsule(angles[1], -elev_angle, [], 0, 1, 1);
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}
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// slice it open so we can pop in cables
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- rotate([0, 0, 45]) {
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- translate([mount_radius - fudge, - mic_wire_diam / 2, -mount_height]) {
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- cube([mount_radius_capsule - mount_radius + fudge, mic_wire_diam, mount_height]);
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+ if (solid == 0) {
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+ rotate([0, 0, 45]) {
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+ translate([mount_radius - fudge, - mic_wire_diam / 2, -mount_height]) {
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+ cube([mount_radius_capsule - mount_radius + fudge, mic_wire_diam, mount_height]);
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+ }
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}
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}
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}
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}
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}
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-module mount_sleeve (wall, separation) {
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+module mount_sleeve (wall, separation, solid = 0) {
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translate([0, 0, -(separation + 0.0)]) {
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difference() {
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union() {
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@@ -297,7 +304,9 @@ module mount_sleeve (wall, separation) {
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difference() {
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cylinder(r = mount_radius + mount_wall + wall, h = sleeve_height, $fn = facets);
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// make the hole for the mount (* 1.5 to cut the ridge as well)
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- cylinder(r = mount_radius + mount_wall, h = sleeve_height * 1.5, $fn = facets);
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+ if (solid == 0) {
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+ cylinder(r = mount_radius + mount_wall, h = sleeve_height * 1.5, $fn = facets);
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+ }
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}
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}
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// spine that fits into slice of mount body
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@@ -363,17 +372,21 @@ module stand_mount_cap (wall, separation) {
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union() {
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// cap
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cylinder(r = mic_mount_radius + mic_mount_fit + wall, h = wall, $fn = facets);
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- translate([0, 0, -wall]) {
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- cylinder(r = mic_mount_radius + mic_mount_fit, h = 2 * wall, $fn = facets);
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+ translate([0, 0, - 2 * wall]) {
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+ cylinder(r = mic_mount_radius + mic_mount_fit, h = 3 * wall, $fn = facets);
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}
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}
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- // hole for mount
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+ // use mount and sleeve to cut hole of correct size and shape
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+ translate([0, 0, mount_height - 2 * wall]) {
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+ mount([45, -135], mount_wall, 0, 1);
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+ mount_sleeve(sleeve_wall, 0, 1);
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+ }
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translate([0, 0, - 2 * wall]) {
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- cylinder(r = mount_radius + mount_wall + sleeve_wall, h = 3 * wall, $fn = facets);
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+ cylinder(r = mount_radius + mount_wall, h = 3 * wall, $fn = facets);
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}
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// slot for microphone wiring
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- translate([0, - mic_wire_diam / 2, - wall]) {
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- cube([mic_mount_radius + mic_mount_fit + wall, mic_wire_diam, 2 * wall]);
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+ translate([0, - mic_wire_diam / 2, - 2 * wall]) {
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+ cube([mic_mount_radius + mic_mount_fit + wall, mic_wire_diam, 3 * wall]);
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}
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}
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}
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@@ -393,7 +406,7 @@ if (rendermic == 1) {
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mount_sleeve(sleeve_wall, capsule_bottom);
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// the microphone stand mount
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stand_mount_cap(mic_mount_wall, capsule_bottom + mount_height + 3);
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- stand_mount(mic_mount_wall, capsule_bottom + mount_height + 5);
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+ stand_mount(mic_mount_wall, capsule_bottom + mount_height + 7);
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}
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// print all the parts separately
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@@ -435,7 +448,7 @@ if (rendermic == 0) {
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part_height = capsule_height;
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part_sep = capsule_radius * 2;
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// #3
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- *translate([part_sep, -part_sep, part_height]) { capsule(0, part_rot, leg_angles_top, 0, 0); }
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+ translate([part_sep, -part_sep, part_height]) { capsule(0, part_rot, leg_angles_top, 0, 0); }
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if (renderset != 0) {
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// #4
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*translate([part_sep, part_sep, part_height]) { capsule(0, part_rot, leg_angles_top, 0, 0); }
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Fernando Pablo Lopez-Lezcano