X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=lock-inframe-bracket.scad;h=09fe5c99fafe7dc600ac40bcd8b79ed4de528e26;hb=eb06f06509cc2403d8592cd147d89d9a1b8bb97f;hp=618be8900af34dbdc7bab720253c2c6a27563421;hpb=a83f55ec09411c2805b717b9c92559546bb28109;p=reprap-play.git

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index 618be89..09fe5c9 100644
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -5,7 +5,7 @@
 
 include <funcs.scad>
 
-tube_dia = 27.5 + 1.625;
+tube_dia = 27.5 + 1.625 + 1.32;
 lock_w = 42.5 + 0.5;
 lock_d = 28.0 + 0.5;
 main_h = 45.0;
@@ -17,8 +17,8 @@ cliprecess_h = 16;
 total_h = 45;
 
 back_gap = 12.5;
-main_th = 3.50;
-tube_th = 4.00;
+main_th = 4.50;
+tube_th = 5.50;
 
 midweb_d = 3;
 clip_th = 3.5;
@@ -42,12 +42,10 @@ divide_shaft_w = 1.75;
 divide_shaft_l = 1.5;
 divide_head_dx = 1.75;
 divide_head_th = 1.5;
-divide_gap = 0.50;
-divide_heads = 2;
+divide_gap = 0.75;
 
 divide_angle = 26;
 divide_fudge_r = 4.75;
-divide_around = 3.5;
 
 backflange_angle = 20;
 
@@ -97,34 +95,6 @@ module JoinCircs(jr){
   }
 }
 
-module DividePlan(xl=10){
-  w = divide_shaft_w;
-  g = divide_gap;
-  l = divide_shaft_l + g;
-  t = divide_head_th + g;
-  dx = divide_head_dx;
-  for (m=[0,1]) mirror([m,0]) {
-    translate([w, 0]) square([xl, g]);
-    for (i=[0:divide_heads-1]) {
-      translate([w, i*(l + t)]) {
-	translate([0, 0]) square([g, l + g]);
-	translate([0, l]) square([divide_head_dx + g, g]);
-	translate([dx, l]) square([g, t + g]);
-	translate([0, l + t])
-	  square([divide_head_dx + g, g]);
-      }
-    }
-    translate([-0.1, (l + t) * divide_heads])
-      square([w + g, g]);
-  }
-}
-
-module DividePlanInPlace(xl=10){
-  rotate([0,0, -divide_angle])
-    translate([ -tube_dia/2 -tube_th/2 - divide_fudge_r, 0])
-    DividePlan(xl);
-}
-
 module DivideHook(){ ////toplevel
   w = tube_th/2;
   d = divide_gap;
@@ -143,6 +113,7 @@ module DivideHook(){ ////toplevel
 module DivideCut(){
   w = tube_th/2;
   d = divide_gap;
+  br = tube_dia/2 + tube_th;
 
   difference(){
     offset(r=divide_gap) DivideHook();
@@ -151,10 +122,20 @@ module DivideCut(){
   }
 }
 
-module DivideInPlace(){
-  rotate([0,0, -divide_angle])
-    translate([ -tube_dia/2 -tube_th/2, 0])
-    children();
+module DivideCutB(){
+  w = tube_th/2;
+  d = divide_gap;
+  br = tube_dia/2 + tube_th;
+  
+  intersection(){
+    translate([br - tube_th/2,0]) {
+      difference(){
+	circle(r=br + d);
+	circle(r=br);
+      }
+    }
+    translate([-2*w, 0]) mirror([0,1]) square(4*w);
+  }
 }
 
 module DivideSurround(){
@@ -169,6 +150,12 @@ module DivideSurround(){
   }
 }
 
+module DivideInPlace(){
+  rotate([0,0, -divide_angle])
+    translate([ -tube_dia/2 -tube_th/2, 0])
+    children();
+}
+
 module MainPlan(){ ////toplevel
   difference(){
     union(){
@@ -209,6 +196,7 @@ module MainPlan(){ ////toplevel
     circle(r = tube_dia/2);
 
     DivideInPlace() DivideCut();
+    DivideInPlace() DivideCutB();
   }
 }
 
@@ -324,10 +312,6 @@ module Demo(){ ////toplevel
 				       back_ohw + 0.25);
 }
 
-module DividePlanDemo(){ ////toplevel
-  DividePlan();
-}
-
 module DivideDemo(){ ////toplevel
   color("black") translate([0,0,-2]) MainPlan();
   color("grey") DivideInPlace() DivideHook();