X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=lock-inframe-bracket.scad;h=64ce58c77dd6e77724cd90c2905729a64055f7a4;hp=4c5bd8355aab4589336d570aa656bb33e0248ae1;hb=e20e39f26f3d192ac47977282c17f46a8bca186a;hpb=7702fac9ec65dfc6f1e0c6550f5e3a95f8bc0803

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index 4c5bd83..64ce58c 100644
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -1,31 +1,35 @@
 // -*- C -*-
 
-tube_dia = 27.5 + 0.5;
+tube_dia = 27.5 + 1.25;
 lock_w = 42.5 + 0.5;
 lock_d = 28.0 + 0.5;
 main_h = 45.0;
 backflange_d = 12;
+lockshaft_dia = 16.65;
 
-lockshaft_r = [5, 5];
 cliprecess_h = 16;
 total_h = 45;
 
-back_gap = 7;
+back_gap = 10;
 main_th = 2.5;
+tube_th = 2.25;
+
 midweb_d = 3;
-clip_th = 2.5;
+clip_th = 3.5;
 clip_gap = 2.5;
 clip_d = 22.0;
 
 mountscrew_dia = 4 + 0.5;
-clipbolt_dia = 5 + 0.5;
+clipbolt_dia = 5 + 0.1;
 
 backflange_th = 3.5;
 
+$fn=50;
+
 // calculated
 
+lockshaft_r = [1, 1] * lockshaft_dia / 2;
 front_th = main_th;
-tube_th = main_th;
 
 tube_or = tube_dia/2 + tube_th;
 back_ohw = back_gap/2 + backflange_th;
@@ -73,7 +77,11 @@ clip_ymin = cliprecess_ymax - total_h;
 clip_ogap = clip_gap + clip_th*2;
 
 module ClipElevationPositive(){
-  oval(lockshaft_or);
+  hull(){
+    oval(lockshaft_or);
+    translate([0, -lockshaft_or[1] * sqrt(2)])
+      square(center=true, 0.5);
+  }
   translate([-lockshaft_or[0], 0])
     square([lockshaft_or[0]*2, cliprecess_ymax]);
   translate([-clip_ogap/2, 0]) mirror([0,1]) square([clip_ogap, -clip_ymin]);
@@ -118,7 +126,7 @@ module ThroughHoles(){
   }
 
   ThroughHole( clipbolt_dia/2,
-	       lock_0y + lock_d/2 + clip_d/2,
+	       lock_0y + lock_d/2 + clip_d/2 + front_th/2,
 	       total_h - cliprecess_h - clip_th - clip_d/2 );
 }
 
@@ -132,16 +140,42 @@ module MainPositive(){
   }
 }
 
-module Bracket(){
+module Bracket(){ //// toplevel
   difference(){
     MainPositive();
     ThroughHoles();
   }
 }
 
+module TestTopEdge(){ //// toplevel
+  intersection(){
+    translate([0,0, -total_h])
+      translate([0,0, 4])
+      Bracket();
+    translate([-200,-200,0])
+      cube([400,400,100]);
+  }
+}
+
+module TestClipBoltHole(){ //// toplevel
+  intersection(){
+    union(){
+      translate([0, 0, -5])
+	Bracket();
+      translate([-4, lock_0y + lock_d/2 + 1, 0])
+	cube([8, 4, 1.5]);
+    }
+    translate([-200, lock_0y + lock_d/2 + 0.1])
+      cube([400, 400, total_h-20]);
+  }
+}
+
 //MainPlan();
+//ClipElevationPositive();
 //ClipElevation();
 //MainPositive();
 //%ThroughHoles();
+//TestTopEdge();
+//TestClipBoltHole();
 
-Bracket();
+//Bracket();