led-panel-ceiling-bracket: wip

[reprap-play.git] / led-panel-ceiling-bracket.scad

diff --git a/led-panel-ceiling-bracket.scad b/led-panel-ceiling-bracket.scad
index a2e05ffa42310011065e7b54ca2672df8b1869a8..6e4b9b52e5bef96cd8006e497068a426769722f7 100644 (file)
--- a/led-panel-ceiling-bracket.scad
+++ b/led-panel-ceiling-bracket.scad
@@ -8,18 +8,27 @@ backspc = 10;
 light_height = 12.5;
 hole_from_back = 7.2 + 0.5;
 hole_dia = 3.5 + 0.5;
+bolthead_dia = 7 + 1.0;
+bolthead_depth = 5;
 
 height = light_height + backspc;
 
+octagon_fudge = 1/cos(22.5);
+
 module Bracket(){
   difference(){
     translate([-len/2, 0,0])
       cube([len, width, height]);
     for (xsgn=[-1,+1]) {
       translate([xsgn * holespc/2, -1, light_height - hole_from_back]) {
-       rotate([-90,0,0])
-         rotate([0,0,360/8/2])
-         cylinder(r=hole_dia/2, h=50, $fn=8);
+       rotate([-90,0,0]) {
+         rotate([0,0,360/8/2]) {
+           cylinder(r=bolthead_dia/2 * octagon_fudge,
+                    h= bolthead_depth +1, $fn=8);
+           cylinder(r=hole_dia/2 * octagon_fudge,
+                    h=50, $fn=8);
+         }
+       }
       }
     }
   }