adding spiral and saturn v stomp rockets

Stomp Rockets/Saturn V v1.scad

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+// A fixed fin stomp rocket version
+// Units mm g s
+
+use <Stomp Rocket Body v1.scad>
+$fa = 1;
+$fs = 0.5;
+
+inner_radius = 17.5/2;
+body_length = 150;
+wall_thickness = 1.8;
+outer_diameter = inner_radius + wall_thickness;
+
+module inner_taper(taper_height=5) {
+    difference() {
+        cylinder(r=inner_radius, h=taper_height);
+        cylinder(r1=inner_radius, r2=1, h=taper_height-0.1);
+    }
+}
+
+module fairing(inner_radius=inner_radius, wall_thickness=wall_thickness) {
+    union() {
+        translate([0,0,50])
+        sphere(r=outer_diameter*1.5);
+        translate([0,0,10])
+        cylinder(r=outer_diameter*1.5,h=40);
+        cylinder(r2=outer_diameter*1.5,r1=outer_diameter,h=10);
+    }
+
+}
+
+module booster(width=20, height=75, thickness=3) {
+    union() {
+        translate([(width)/2+1,0,0])
+        cylinder(d=width, h=height);
+        translate([(width)/2+1,0,height]) 
+        cylinder(d1=width, d2=0, h=10);
+        translate([(width)/2+1,0,0])
+        cylinder(d1=width*1.15, d2=width, h=10);
+        for (i=[0.25*height, 0.75*height]) {
+            translate([(width)/2+1,0,i])
+            cylinder(d=1.15*width, h=5);
+        }
+    }
+
+}
+
+
+union() {
+    difference() {
+        union() {
+            translate([0,0,body_length])
+            rotate([0,180,0]) 
+            color("gray") rocket_body(inner_radius = inner_radius, wall_thickness=wall_thickness);
+            translate([0,0,body_length-20]) color("red") fairing();
+        }
+        translate([0,0,5])
+        cylinder(r=inner_radius+0.4, h=body_length-10);
+    }
+
+    translate([0,0,body_length-10]) color("blue") inner_taper(taper_height=5);
+    
+    for (i=[0,90,180,270]) {
+        rotate(i)
+        translate([outer_diameter-0.1, 0, 0])
+        booster();
+    }
+
+}

Stomp Rockets/Spiral Fins v1.scad

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