// For any other flashlight, adjust the parameters below:
// the true _diameter_ of the flashlight + some space around
-ring_d = 34.3 + 1.0;
+// ring_d = 34.3 + 1.0; // zsj-t29
+ring_d = 44 + 0.5; // lzz-186
// the diaphragm thickness, set so that it is printed with two print layers
-diaphragm = 0.5;
+diaphragm = 0.4;
// outer wall thickness - preferably the integer multiple
// of the print trace width
-wall = 1.5;
+wall = 1.0;
// height of the center of clip beams + some space below + diaphragm thickness
-clip_h = 7.3 + 0.5 + diaphragm;
+// clip_h = 7.3 + 0.5 + diaphragm; // zsj-t29
+clip_h = 16 + 0.5 + diaphragm; // zsj-t29
// the clips protrude this much to the inner cylindrical hole
// the bigger value means more stiff fit
clip_w = 1.2;
-clip_angle = 120; // at least 90 degrees; bigger is easier to put on and off,
+clip_angle = 90; // at least 90 degrees; bigger is easier to put on and off,
// smaller is more stiff, but harder to remove
n_clips = 3; // number of clips; odd numbers prefered
// on top of the clip
clip_top = clip_h + (clip_w+wall/2)*tan(clip_angle/2);
+// if the lens protrudes below the outer ring, it is better that
+// the diffuser sits on the outer ring. So we can add an additional
+// support ring
+support_h = 3;
+support_w = 3;
+
// the overall height:
-// ring_h = clip_top; // cylindrical shape without the clips protruding on the top
-ring_h = clip_h + wall; // clips protruding on the top
+ring_h = clip_top; // cylindrical shape without the clips protruding on the top
+// ring_h = clip_h + wall; // clips protruding on the top
infty = 100;
eps = 0.01;
module diffuser() {
difference() {
+ $fn = 256;
// outer cylinder
cylinder(r = ring_d/2 + wall, h = ring_h);
- // inner cylinder hole + diaphragm
+ // inner cylinder hole
+ translate([0, 0, diaphragm + support_h])
+ cylinder(r = ring_d/2, h = ring_h - support_h);
+ // support ring
translate([0, 0, diaphragm])
- cylinder(r = ring_d/2, h = ring_h);
+ cylinder(r = ring_d/2 - support_w, h = support_h + eps);
translate([0, 0, ring_h + eps - wall])
cylinder(r1 = ring_d/2, r2 = ring_d/2 + wall/2, h = wall);
}
rotate([0, clip_angle/2, 0])
cube(infty);
}
- cylinder(r = ring_d/2 + wall, h = clip_top);
+ cylinder(r = ring_d/2 + wall, h = clip_top, $fn = 256);
}
}