76 lines
2.7 KiB
OpenSCAD
76 lines
2.7 KiB
OpenSCAD
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// Air Raid Siren Stator Parameters
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outer_diameter = 200; // Outer diameter of the stator
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column_height = 100; // Height of the entire column
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num_ports = 7; // Number of rectangular ports (works with odd or even)
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port_height = 70; // Height of the ports
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wall_thickness = 5; // Thickness of the column wall
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module air_raid_siren_stator() {
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// Calculate port width based on equal arc length
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port_width = (PI * outer_diameter) / (num_ports * 2);
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// Calculate vertical position to center the ports
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port_vertical_offset = (column_height - port_height) / 2;
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// Calculate inner diameter based on wall thickness
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inner_diameter = outer_diameter - (2 * wall_thickness);
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difference() {
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union() {
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// Main cylindrical body
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cylinder(h = column_height, d = outer_diameter, $fn = 100);
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// Close the bottom with wall_thickness height
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cylinder(h = wall_thickness, d = outer_diameter, $fn = 100);
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}
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// Hollow out the center (open on top end)
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translate([0, 0, wall_thickness])
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cylinder(h = column_height + 1, d = inner_diameter, $fn = 100);
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// Create evenly spaced rectangular ports
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for (i = [0 : num_ports - 1]) {
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rotate([0, 0, i * (360 / num_ports)])
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translate([outer_diameter/2 - wall_thickness * 2, -port_width/2, port_vertical_offset])
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cube([wall_thickness * 2 + 1, port_width, port_height]);
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}
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}
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}
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module impeller() {
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// Calculate port width based on equal arc length
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port_width = (PI * outer_diameter) / (num_ports * 2);
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// Calculate vertical position to center the ports
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port_vertical_offset = (column_height - port_height) / 2;
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// Calculate inner diameter based on wall thickness
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inner_diameter = outer_diameter - (2 * wall_thickness);
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difference() {
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union() {
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// Main cylindrical body
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cylinder(h = column_height, d = outer_diameter, $fn = 100);
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// Close the bottom with wall_thickness height
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cylinder(h = wall_thickness, d = outer_diameter, $fn = 100);
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}
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// Hollow out the center (open on top end)
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translate([0, 0, wall_thickness])
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cylinder(h = column_height + 1, d = inner_diameter, $fn = 100);
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// Create evenly spaced rectangular ports
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for (i = [0 : num_ports - 1]) {
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rotate([0, 0, i * (360 / num_ports)])
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translate([outer_diameter/2 - wall_thickness * 2, -port_width/2, port_vertical_offset])
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cube([wall_thickness * 2 + 1, port_width, port_height]);
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}
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}
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}
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// Render the stator
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//air_raid_siren_stator();
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impeller();
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