Michael Winter
0fbf33b756
- Move legacy FreeCAD files to v1/ - Add OpenSCAD programmatic CAD designs - Add README and AGENTS.md documentation - Add .gitignore - Update firmware to v2 architecture
79 lines
2.4 KiB
OpenSCAD
79 lines
2.4 KiB
OpenSCAD
// Blade Dimensions
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diameter = 100; // Base diameter
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height = 100; // Height of the rotor
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wall_thickness = 6; // Wall thickness
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tolerance = 2; // Tolerance between stator and rotor
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number_of_ports = 6; // Number of ports [2:8]
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port_height = 50; // Height of the port
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pressure_zone = 0.4; // Define this globally with an appropriate default value
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mounting_hole_diameter = 4; // Diameter of mounting holes
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mounting_hole_offset = 20; // Radial distance from center to hole centers
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number_of_mounting_holes = 4; // Number of mounting holes
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mounting_hole_bore = 8; // Diameter of mounting holes counterbore
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round_radius = 4;
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motor_shaft_diameter = 5;
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hub_height = 10;
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motor_width = 20; // Diameter of the motor shaft
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$fn = 128; // Number of fragments
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diameter = 100;
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blade_width = 5;
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blade_length = diameter;
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// Blade Height
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blade_height = 10;
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// Number of ports/blades
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number_of_ports = 5;
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// Pressure zone percentage
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pressure_zone = 0.4; // 30% of diameter
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module impeller_blades() {
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difference() {
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intersection() {
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// Column with full diameter
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cylinder(d = diameter, h = blade_height);
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// Blades
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union() {
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//rotate([180, 180, 180])
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for (i = [0:360/number_of_ports:360]) {
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rotate([0, 0, i - 90])
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translate([0, diameter / 2, 0])
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rotate([0, 0, 10])
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translate([-blade_width, -diameter / 2, 0])
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linear_extrude(height = blade_height, twist = 0, slices=360)
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square([blade_width, blade_length]);
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}
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}
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}
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// Subtract core cylinder
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translate([0, 0, -1])
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cylinder(d = diameter * pressure_zone, h = blade_height + 2);
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}
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}
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module ports() {
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radius = diameter / 2;
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angle = 360 / number_of_ports / 2;
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rotate([0, 0, 180 / number_of_ports])
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for (i = [0:360/number_of_ports:360]) {
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rotate([0, 0, i])
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translate([0, 0, (height - port_height) / 2])
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linear_extrude(height = port_height)
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polygon(concat(
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[[0, 0]], // Center point
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[for (j = [0 : $fn])
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[radius * cos(angle * j / $fn),
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radius * sin(angle * j / $fn)]]
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));
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}
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}
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// Optional: If you want to render the blades independently for testing
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impeller_blades();
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ports(); |