71 lines
1.7 KiB
OpenSCAD
71 lines
1.7 KiB
OpenSCAD
// A fixed fin stomp rocket version
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// Units mm g s
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use <Stomp Rocket Body v1.scad>
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$fa = 1;
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$fs = 0.5;
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inner_radius = 17.5/2;
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body_length = 150;
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wall_thickness = 1.8;
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outer_diameter = inner_radius + wall_thickness;
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module inner_taper(taper_height=5) {
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difference() {
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cylinder(r=inner_radius, h=taper_height);
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cylinder(r1=inner_radius, r2=1, h=taper_height-0.1);
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}
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}
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module nose_cone(inner_radius=inner_radius, wall_thickness=wall_thickness) {
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radius = inner_radius+wall_thickness;
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difference() {
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sphere(r=radius);
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translate([0,0,-1.75*radius])
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cylinder(h=radius, r=radius);
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}
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}
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module fin(width=25, height=115, thickness=3) {
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rotate([80,0,0])
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translate([-7,-4,11])
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linear_extrude(height=thickness, center=true)
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polygon(points=[
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[0,0],
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[width,0],
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[width,height/2],
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[0,height],
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]);
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}
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difference() {
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// clear everything below the build plate
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difference() {
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// clear center of rocket body
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union() {
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//assemble the rocket
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translate([0,0,body_length])
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rotate([0,180,0])
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color("gray") rocket_body(inner_radius = inner_radius, wall_thickness=wall_thickness);
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translate([0,0,body_length-5]) color("red") inner_taper(taper_height=5);
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translate([0,0,body_length+10]) color("blue") nose_cone(inner_radius=inner_radius*1.5);
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for (i=[0,90,180,270]) {
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rotate(i)
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translate([outer_diameter-0.1, 0, 0])
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fin();
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}
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}
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translate([0,0,5])
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cylinder(r=inner_radius+0.4, h=body_length-10);
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}
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// build plate
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translate([-100,-100,-200])
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cube([200,200,200]);
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}
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