X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=topeak-seatstay-lock.scad;h=072a55769e298641432b12df9db8d3a6781d0fc5;hp=05035d76cdd5b75ca9bcf7548a21c9627824b7de;hb=464ea5bfb20555916aa523b6d2745805347b4245;hpb=046b27e8504295ef1cc4cb1af96690e41366ee70

diff --git a/topeak-seatstay-lock.scad b/topeak-seatstay-lock.scad
index 05035d7..072a557 100644
--- a/topeak-seatstay-lock.scad
+++ b/topeak-seatstay-lock.scad
@@ -7,8 +7,7 @@ pump_seatstay_gap = 12.3;
 pump_seatstay_delta = 0.1;
 pump_ridge_width = 8 + 2.0;
 
-body_thick_x = 5;
-body_thick_y = 5;
+body_thick = 5;
 
 pin_workdepth = 16 - 1.0;
 pin_width = 11 + 1.0;
@@ -23,12 +22,17 @@ lock_manouvre_len_smaller = 13;
 body_depth_each = 5;
 clatter_gap = 0.5;
 
+roof_extent = 7;
+roof_thick = 2;
+
 // fudgeish
 
 cut_rotation = 2;
 holes_rotation = 9;
-pin_offset = 6;
+pin_y_offset = 5.5;
+pin_x_offset = 0.5;
 ridge_rotation = 8.5;
+lock_hang_ratio = 7;
 
 // computed
 
@@ -57,41 +61,48 @@ module Holes(forbody=false){
 }
 
 module BodyPlan(){
-  hull(){
-    for(x=[-1,1]) for(y=[-1,1])
-      translate([x*body_thick_x, y*body_thick_y])
-	Holes(true);
+   minkowski(){
+    circle(body_thick);
+    hull()
+      Holes(true);
   }
 }
 
 module Body(){
-  translate([0,0,-body_depth/2])
+  translate([0,0,body_depth/2])mirror([0,0,1]){
     linear_extrude(height=body_depth){
-    difference(){
-      BodyPlan();
-      Holes();
+      difference(){
+	BodyPlan();
+	Holes();
+      }
+    }
+    linear_extrude(height=roof_thick){
+      difference(){
+	hull(){
+	  BodyPlan();
+	  translate([0,-roof_extent,0]) BodyPlan();
+	}
+	Holes();
+      }
     }
   }
 }
 
 module Pin(){
-  translate([0, pin_offset, 0]) rotate([0,90,0]){
+  translate([pin_x_offset, pin_y_offset, 0]) rotate([0,90,0]){
     translate([0, 0, -pin_thick/2])
       linear_extrude(height=pin_thick){
       translate([-pin_base/2, 0]) square([pin_base, 50]);
       translate([-pin_width/2, -100]) square([pin_width, 101]);
     }
     hull() for (d=[0,10]) {
-      translate([d*2,-d,0])
+      translate([d*lock_hang_ratio,-d,0])
 	translate([-lock_manouvre_thick/2,
 		   -pin_workdepth-100,
 		   -lock_manouvre_len_smaller])
 	cube([lock_manouvre_thick, 100,
 	      lock_manouvre_len + lock_manouvre_len_smaller]);
     }
-    translate([-lock_manouvre_thick/2, -pin_workdepth-50,
-	       -lock_hang_width/2])
-      cube([50, 50, lock_hang_width]);
   }
 }
 
@@ -111,11 +122,14 @@ module Piece(pc,interval){
   }
 }
 
+module PiecePrint(pc){
+  rotate([0,0,90]) rotate([0,180,0])
+    Piece(pc,4);
+}
+
 module PiecesPrint(){
-  rotate([0,180,0])
-    for (pc=[0,1]){
-      Piece(pc,4);
-    }
+  PiecePrint(0);
+  PiecePrint(1);
 }
 
 module Demo(){
@@ -129,3 +143,5 @@ module Demo(){
 //Pin();
 //Pieces();
 PiecesPrint();
+//PiecePrint(0);
+//PiecePrint(1);