X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=velux-window-grip.scad;h=d59a78fdced7e5e5f0b12e53f8dbe8d83e99bbc0;hp=672a42f144f7d8b4cdd02d00f594cd83ff12ef9f;hb=872cd48f11a61e4d11c38f0c29a457c95c8ff7dc;hpb=42b9172b21fa9c5b6e63dd9026aa54ae59257e88

diff --git a/velux-window-grip.scad b/velux-window-grip.scad
index 672a42f..d59a78f 100644
--- a/velux-window-grip.scad
+++ b/velux-window-grip.scad
@@ -2,23 +2,52 @@
 
 include <funcs.scad>
 
-main_thick = 3.3;
-main_in_dia = 28.9 + 0.5;
+// MainLoop
 
-horn_ext_dia = 20 - 0.5; //?
+main_thick = 9.0;
+main_in_dia = 28.9;
 
-horn_c_x = -5; //?
-horn_c_dy= -5; //?
+horn_ext_dia = 20 - 0.5;
+
+horn_c_x = -4.6;
+horn_c_dy= -4;
 
 blhook_start_ang = 45;
+blhook_in_rad = 1.85;
+blhook_str_len = 2.9;
 
 width = 20;
 
+// Attach
+
+at_bolt_into = 13.0 + 0.5;
+at_tube_dia = 16.7 + 0.5;
+at_prong_minw = 4;
+at_rear_thick = 4.5;
+at_bolt_dia = 5 + 0.5;
+
+at_rear_width = at_tube_dia;
+at_stem_len = main_in_dia/2 * 0.3;
+
+at_prong_depth = at_bolt_into * 2;
+at_gap_width = at_tube_dia * 0.75;
+
+// computed
+
+blhook_mid_rad = blhook_in_rad + main_thick/2;
 mc_mid_rad = main_in_dia/2 + main_thick/2;
 
 mc_bl = circle_point([0,0], mc_mid_rad, 270-blhook_start_ang);
 
-$fs=0.1;
+at_block_x = at_tube_dia + at_prong_minw * 2;
+at_block_y = at_prong_depth + at_rear_thick;
+at_block_z = width;
+
+at_stem_yy = at_stem_len + mc_mid_rad;
+
+at_offset_y = at_block_y + at_stem_len + mc_mid_rad;
+
+$fs=0.05;
 
 horn_thick = main_thick;
 
@@ -41,7 +70,13 @@ module MainLoop(){
     intersection(){
     difference(){
       circle(horn_ext_dia/2);
-      circle(horn_ext_dia/2 - horn_thick);
+      intersection(){
+	circle(horn_ext_dia/2 - horn_thick);
+	polygon([[-50,-50],
+		 [-50,-horn_c_dy],
+		 [50,-horn_c_dy],
+		 [50,-50]]);
+      }
     }
     polygon([[0,0],
 	      [-50,0],
@@ -49,6 +84,55 @@ module MainLoop(){
   }
   translate([0,main_in_dia/2]) mirror([1,0])
     square([-horn_c_x + horn_ext_dia/2 * 0.75, main_thick]);
+  translate(mc_bl){
+    translate([-blhook_str_len/2, 0])
+      square(center=true, [blhook_str_len, main_thick]);
+    translate([-blhook_str_len, blhook_mid_rad]){
+      intersection(){
+	difference(){
+	  circle(r=blhook_mid_rad + main_thick/2);
+	  circle(r=blhook_mid_rad - main_thick/2);
+	}
+	mirror([1,1]) square(50);
+      }
+    }
+  }
+}
+
+module MainLoopTest(){
+  linear_extrude(height=1.6)
+    MainLoop();
+}
+
+module Attach(){
+  difference(){
+    translate([0, at_block_y/2, 0])
+      cube(center=true, [at_block_x, at_block_y, at_block_z]);
+    translate([0, at_prong_depth/2-1, 0])
+      cube(center=true, [at_gap_width, at_prong_depth+2, at_block_z+1]);
+    translate([0,-1,0])
+      rotate([-90,0,0])
+      cylinder(r= at_tube_dia/2, h= at_prong_depth+1);
+    translate([-50, at_prong_depth-at_bolt_into, 0])
+      rotate([0,90,0])
+      cylinder(r= at_bolt_dia/2, h= 100);
+  }
+  difference(){
+    translate([0, at_block_y + at_stem_yy/2 - 0.1, 0])
+      cube(center=true, [at_tube_dia, at_stem_yy + 0.2, at_block_z]);
+    translate([0, at_offset_y, -50])
+      cylinder(r = mc_mid_rad, 100);
+  }
+}
+
+module Combine(){
+  rotate([0,0,45]) translate([0,-main_thick/2,0]){
+    linear_extrude(height=width)
+      translate([0,at_offset_y,0])
+      MainLoop();
+    translate([0,0, width/2])
+      Attach();
+  }
 }
 
-MainLoop();
+Combine();