wing tube support - tighter lighter version

diff --git a/wing-tube-support.scad b/wing-tube-support.scad
index 0c438f783cc4f606b0e79555e60c6f2e37ca3b0f..4fe68720aaa4e9502c0282e3081cd7eb38612b79 100644 (file)
--- a/wing-tube-support.scad
+++ b/wing-tube-support.scad
@@ -1,10 +1,10 @@
 eps = 0.01;
 infty = 100;
 
-wall = 1;
+wall = 1.2;
 thin_wall = 0.6;
 
-tube_d = 6 + 0.3;
+tube_d = 6 + 0.1;
 tube_zoff = 3;
 
 base_front = 15;
@@ -53,6 +53,8 @@ module body(tube_zoff) {
        scale([x, 1, 1]) {
                translate([tube_d/2, -tube_l/2, 0])
                        cube([wall, tube_l, tube_zoff + tube_d/2]);
+               translate([tube_d/2+wall, -wall, 0])
+                       cube([wall, 2*wall, tube_zoff + tube_d/2]);
        }
 
        // upper cylinder clip
@@ -60,12 +62,12 @@ module body(tube_zoff) {
        intersection() {
                rotate([-90, 0, 0]) union() {
                        cylinder(r = tube_d/2 + wall, h = tube_l);
-                       translate([0, 0, tube_l/2 - wall/2])
-                               cylinder(r = tube_d/2 + wall + thin_wall,
-                                       h = wall);
+                       translate([0, 0, tube_l/2 - wall])
+                               cylinder(r = tube_d/2 + 2*wall,
+                                       h = 2*wall);
                }
-               translate([-tube_d/2-wall, 0, 0])
-                       cube([tube_d + 2*wall, tube_l, tube_d]);
+               translate([-tube_d/2-2*wall, 0, 0])
+                       cube([tube_d + 4*wall, tube_l, tube_d]);
        }
 }
 
@@ -75,15 +77,15 @@ module wing_tube_support(tube_zoff) {
                // main tube
                translate([0, -base_l/2-eps, tube_d/2+tube_zoff])
                rotate([-90, 0, 0])
-                       cylinder(r = tube_d/2, h = base_l + 2*eps);
+                       cylinder(r = tube_d/2, h = base_l + 2*eps, $fn = 32);
                // upper clip
                translate([-infty/2, -infty/2, tube_zoff + 5*tube_d/6])
                        cube(infty);
 
                // front-side hole
-               translate([0.6*base_front, 0, -eps])
+               translate([0.7*base_front, 0, -eps])
                        scale([1, base_l/base_front, 1])
-                       cylinder(r = base_front/4, h = thin_wall + 2*eps);
+                       cylinder(r = base_front/5, h = thin_wall + 2*eps);
                // rear-side hole
                translate([-0.6*base_rear, 0, -eps])
                        scale([1, base_l/base_rear, 1])