lock-inframe-bracket: DividePlan on its way

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index b688252eda9bb38be3beee4e13efba54a8201633..d25e373a43885b5c6ccbae0a3c49b4af157263ff 100644 (file)
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -15,9 +15,9 @@ lockshaft_dia = 14.35;
 cliprecess_h = 16;
 total_h = 45;
 
-back_gap = 14.5;
+back_gap = 10.5;
 main_th = 3.25;
-tube_th = 2.50;
+tube_th = 3.75;
 
 midweb_d = 3;
 clip_th = 3.5;
@@ -35,15 +35,16 @@ join_cr = 9;
 
 tube_rear_extra_th = 1;
 
-divide_shaft_w = 1.5;
+divide_shaft_w = 1.75;
 divide_shaft_l = 1.5;
-divide_head_dx = 1.5;
+divide_head_dx = 1.75;
 divide_head_th = 1.5;
 divide_gap = 0.50;
-divide_heads = 1;
+divide_heads = 2;
 
-divide_angle = 35;
-divide_fudge_r = 3;
+divide_angle = 26;
+divide_fudge_r = 4.75;
+divide_around = 3.5;
 
 // calculated
 
@@ -91,14 +92,14 @@ module JoinCircs(jr){
   }
 }
 
-module DividePlan(){
+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([10, g]);
+    translate([w, 0]) square([xl, g]);
     for (i=[0:divide_heads-1]) {
       translate([w, i*(l + t)]) {
        translate([0, 0]) square([g, l + g]);
@@ -113,10 +114,10 @@ module DividePlan(){
   }
 }
 
-module DividePlanInPlace(){
+module DividePlanInPlace(xl=10){
   rotate([0,0, -divide_angle])
     translate([ -tube_dia/2 -tube_th/2 - divide_fudge_r, 0])
-    DividePlan();
+    DividePlan(xl);
 }
 
 module MainPlan(){
@@ -145,20 +146,20 @@ module MainPlan(){
        translate([-back_gap/2,1]) mirror([0,1])
          square([back_gap, backflange_ymin+2]);
 
-       translate([0, lock_0y]){
-         oval([lock_w/2, lock_d/2]);
-       }
-
        JoinCircs(join_cr);
       }
 
       hull(){
        minkowski(){
-         DividePlanInPlace();
-         circle(5);
+         DividePlanInPlace(0.1);
+         circle(divide_around);
        }
       }
     }
+    translate([0, lock_0y]){
+      oval([lock_w/2, lock_d/2]);
+    }
+
     circle(r = tube_dia/2);
 
     DividePlanInPlace();