314 lines
12 KiB
OpenSCAD
314 lines
12 KiB
OpenSCAD
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/* [Stator Parameters] */
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Outer_Diameter = 200; //[10:1:500] Outer diameter of the stator
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Column_Height = 100; //[10:1:500] Height of the entire column
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Base_Height = 5; //[1:0.1:50] Height of the base
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Number_of_Ports = 7; //[3:1:20] Number of rectangular ports (works with odd or even)
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Port_Height = 70; //[10:1:500] Height of the ports
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Wall_Thickness = 5; //[1:0.1:50] Thickness of the column wall
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Tolerance = 2; //[0:0.1:5]
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/* [Hub Parameters] */
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Hub_Diameter = 10; //[10:1:500] Diameter of the rotor hub
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Shaft_Diameter = 5; //[1:0.1:50] Diameter of the motor shaft
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/* [Blade Parameters] */
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Blade_Thickness = 5; //[1:0.1:20] Thickness of each blade
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module stator_core(outer_diameter, number_of_ports, column_height, port_height, base_height, wall_thickness, port_vertical_offset = 0) {
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// Calculate port width based on equal arc length
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port_width = (PI * outer_diameter) / (number_of_ports * 2);
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// Calculate default vertical position to center the ports if no offset is provided
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default_port_vertical_offset = (column_height - port_height) / 2;
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// Use the provided offset or fall back to the centered position
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final_port_vertical_offset = port_vertical_offset != 0 ?
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default_port_vertical_offset - (port_vertical_offset / 2):
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default_port_vertical_offset;
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// Calculate inner diameter based on wall thickness
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inner_diameter = outer_diameter - wall_thickness;
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difference() {
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union() {
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// Base cylinder
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cylinder(h = base_height, d = outer_diameter, $fn = 100);
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// Main cylindrical body
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translate([0, 0, base_height])
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cylinder(h = column_height, 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, base_height])
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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 : number_of_ports - 1]) {
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rotate([0, 0, i * (360 / number_of_ports)])
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translate([outer_diameter/2 - wall_thickness * 2, -port_width/2, base_height + final_port_vertical_offset])
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cube([wall_thickness * 2 + 1, port_width, port_height], center = false);
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}
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}
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}
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module stator() {
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// Local variables set to global variables
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outer_diameter = Outer_Diameter;
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number_of_ports = Number_of_Ports;
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column_height = Column_Height;
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port_height = Port_Height;
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base_height = Base_Height;
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wall_thickness = Wall_Thickness;
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// Use the module instead of calling it as a function
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stator_core(outer_diameter, number_of_ports, column_height, port_height, base_height, wall_thickness);
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}
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module stator() {
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// Local variables set to global variables
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outer_diameter = Outer_Diameter;
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number_of_ports = Number_of_Ports;
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column_height = Column_Height;
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port_height = Port_Height;
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base_height = Base_Height;
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wall_thickness = Wall_Thickness;
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// Extension dimensions
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extension_length = 20; // Length of extension
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extension_width = 15; // Width of extension
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fillet_radius = 2; // Fillet radius
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screw_hole_diameter = 4; // M4 screw hole
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support_ring_diameter = screw_hole_diameter + 6;
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difference() {
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union() {
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// Original stator core
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stator_core(outer_diameter, number_of_ports, column_height, port_height, base_height, wall_thickness);
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// Top extensions at 4 cardinal points
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translate([0, 0, base_height + column_height - wall_thickness])
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for (i = [0 : 3]) {
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rotate([0, 0, i * 90])
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translate([outer_diameter/2, -extension_width/2, 0])
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hull() {
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// Corners with fillet
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// Bottom left
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translate([fillet_radius, fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Bottom right
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translate([extension_length - fillet_radius, fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Top left
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translate([fillet_radius, extension_width - fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Top right
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translate([extension_length - fillet_radius, extension_width - fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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}
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}
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}
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// M4 Screw holes through top extensions
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translate([0, 0, base_height + column_height - wall_thickness])
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for (i = [0 : 3]) {
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rotate([0, 0, i * 90])
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translate([outer_diameter/2 + extension_length/2, 0, -1])
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cylinder(h = wall_thickness + 2, d = screw_hole_diameter, $fn = 50);
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}
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}
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}
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/*
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module blade(outer_diameter, column_height, blade_thickness, blade_color) {
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// Bezier curve function (cubic)
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function bezier_cubic(p0, p1, p2, p3, t) =
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pow(1-t, 3) * p0 +
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3 * pow(1-t, 2) * t * p1 +
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3 * (1-t) * pow(t, 2) * p2 +
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pow(t, 3) * p3;
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// Generate Bezier curve points
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function generate_bezier_points(p0, p1, p2, p3, steps=20) =
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[for (i = [0:steps]) bezier_cubic(p0, p1, p2, p3, i/steps)];
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// Control points for the Bezier curve
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p0 = [0, 0]; // Start point
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p1 = [outer_diameter / 3, column_height];
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p2 = [outer_diameter / 8, column_height];
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p3 = [outer_diameter / 2, column_height]; // End point
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// Generate curve points
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curve_points = generate_bezier_points(p0, p1, p2, p3);
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// Combine points to create polygon
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points = concat(
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curve_points,
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[[outer_diameter/2, 0]] // Close the polygon
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);
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color(blade_color)
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rotate([90, 0, 0]) // Rotate 90 degrees around X-axis
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linear_extrude(height = blade_thickness, center = true)
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polygon(points = points);
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}
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*/
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module blade(outer_diameter, column_height, blade_thickness, blade_color) {
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// Rectangular blade points
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points = [
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[outer_diameter * 0.5 / 2, 0], // Start at 40% of radius
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[outer_diameter * 0.5 / 2, column_height],// Top left
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[outer_diameter / 2, column_height],// Top right
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[outer_diameter / 2, 0] // Bottom right
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];
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color(blade_color)
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rotate([90, 0, 0]) // Rotate 90 degrees around X-axis
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linear_extrude(height = blade_thickness, center = true)
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polygon(points = points);
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}
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module rotor() {
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// Local variables set to global variables
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outer_diameter = Outer_Diameter - Wall_Thickness - Tolerance;
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number_of_ports = Number_of_Ports;
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column_height = Column_Height - Base_Height - (Tolerance * 2);
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port_height = Port_Height;
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base_height = Base_Height;
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wall_thickness = Wall_Thickness;
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port_vertical_offset = Tolerance * 2 + 1;
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// Hub parameters from global variables
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hub_diameter = Hub_Diameter;
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shaft_diameter = Shaft_Diameter;
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hub_height = base_height * 2;
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// Blade parameters from global variables
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number_of_blades = Number_of_Ports;
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blade_thickness = Blade_Thickness;
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rotation_offset = (360 / (number_of_ports * 4)) +
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((blade_thickness / (PI * outer_diameter)) * 360 / 2);
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difference() {
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union() {
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// Original stator_core module call
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stator_core(outer_diameter, number_of_ports, column_height, port_height, base_height, wall_thickness, port_vertical_offset);
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// Hub for motor attachment
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translate([0, 0, 0])
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cylinder(h = hub_height, d = hub_diameter, $fn = 100);
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// Add blades
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for (i = [0 : number_of_blades - 1]) {
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rotate([0, 0, i * (360 / number_of_ports) + rotation_offset])
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//rotate([0, 0, i * (360 / number_of_ports) + rotation_offset - 10])
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mirror([0, 1, 0]) // Mirror along Z-axis
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translate([0, 0, base_height])
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//translate([40, 0, base_height])
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//rotate([0, 0, -20])
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//translate([-40, 0, 0])
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blade(
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outer_diameter - wall_thickness,
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column_height,
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blade_thickness,
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"red" // Blade color
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);
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}
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}
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// Shaft hole for motor attachment
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translate([0, 0, -1])
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cylinder(h = hub_height + 2, d = shaft_diameter, $fn = 100);
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}
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}
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module stator_cap() {
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outer_diameter = Outer_Diameter;
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wall_thickness = Wall_Thickness;
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column_height = Column_Height;
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base_height = Base_Height;
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// Central hole diameter (60% of total diameter)
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central_hole_diameter = outer_diameter * 0.6;
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// M4 screw specifications
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screw_hole_diameter = 4;
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// Extension dimensions
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extension_length = 20; // Length of extension
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extension_width = 15; // Width of extension
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fillet_radius = 2; // Fillet radius
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// Screw hole support ring
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support_ring_diameter = screw_hole_diameter + 6; // Adds extra material around screw hole
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difference() {
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union() {
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// Base solid cylinder
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cylinder(h = wall_thickness, d = outer_diameter, $fn = 100);
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// Screw hole extensions at 4 cardinal points
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for (i = [0 : 3]) {
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rotate([0, 0, i * 90])
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translate([outer_diameter/2 - wall_thickness, -extension_width/2, 0]) {
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difference() {
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// Filleted extension
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hull() {
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// Corners with fillet
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// Bottom left
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translate([fillet_radius, fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Bottom right
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translate([extension_length - fillet_radius, fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Top left
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translate([fillet_radius, extension_width - fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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// Top right
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translate([extension_length - fillet_radius, extension_width - fillet_radius, 0])
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cylinder(r = fillet_radius, h = wall_thickness, $fn = 50);
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}
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// Centered screw hole support ring
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translate([extension_length/2, extension_width/2, -1])
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cylinder(h = wall_thickness + 2, d = support_ring_diameter, $fn = 100);
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}
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}
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}
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}
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// Central hole
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translate([0, 0, -1])
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cylinder(h = wall_thickness + 2, d = central_hole_diameter, $fn = 100);
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// M4 Screw holes through extensions
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for (i = [0 : 3]) {
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rotate([0, 0, i * 90])
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translate([outer_diameter/2 + extension_length/2 - wall_thickness, 0, -1])
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cylinder(h = wall_thickness + 2, d = screw_hole_diameter, $fn = 50);
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}
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}
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}
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// Render components separately
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stator();
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/*
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translate([Outer_Diameter, 0, Base_Height + Tolerance])
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rotor();
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// Render cap separately and offset
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translate([0, 0, Base_Height + Column_Height + Tolerance])
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stator_cap();
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*/
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