X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=sprinkler-spike-receptacle.scad;h=57a33c778b45e920b9b5d314c522ac641844e420;hb=e0bd09412f7e4fc105057e17d8be7efaeb9d97e8;hp=09d596f9fd2139a467fffdb63ffc421a1c62f4d8;hpb=a5311d45a12b1ab433e478424f766c00079bcd0c;p=reprap-play.git

diff --git a/sprinkler-spike-receptacle.scad b/sprinkler-spike-receptacle.scad
index 09d596f..57a33c7 100644
--- a/sprinkler-spike-receptacle.scad
+++ b/sprinkler-spike-receptacle.scad
@@ -2,17 +2,28 @@
 
 main_height = 95;
 
-spike_top_width = 21.04;
+spike_web_thick = 2.52 + 0.75;
+
+spike_top_width = 21.04 + 1.5;
 
 spike_botpos_height = 9.5;
-spike_botpos_width = 11.68;
+spike_botpos_width = 11.68 + 0.00;
 
 topwall_width = 1.5;
 
+mount_dist = 20;
+mount_width = 10;
+mount_height = 5;
+mount_hole_dia = 4.5;
+mount_head_dia = 7.5;
+mount_hole_th = 2.5;
+
 // calculated
 
 main_width = spike_top_width + topwall_width*2;
 
+pos_web_thick = spike_web_thick + topwall_width*2;
+
 module NegativePlan(){
   x4z =
     (spike_top_width - spike_botpos_width) /
@@ -32,12 +43,74 @@ module NegativePlan(){
 	   [-x0, -5]]);
 }
 
+module SomeMidRounding(sq_size, z_extra) {
+  translate([0,0,-z_extra])
+    linear_extrude(height= main_height + z_extra*2)
+    rotate(45)
+    square( sq_size, center=true );
+}
+
+module PositiveMidRounding(){
+  SomeMidRounding(pos_web_thick*2, 0);
+}
+
+module NegativeMidRounding(){
+  SomeMidRounding(spike_web_thick*2.5, 5);
+}
+
 module PositivePlan(){
   w = main_width;
   translate([ -w/2, 0 ])
     square([ w, main_height ]);
 }
 
+module MultiplySolidifyPlan(th){
+  for (r=[0,90]) {
+    rotate([0,0,r])
+      rotate([90,0,0])
+      translate([0,0,-th/2])
+      linear_extrude(height=th)
+      children(0);
+  }
+}
+
+module MultiplyForMount(){
+  for (r=[0:90:270])
+    rotate([0,0,r])
+    children(0);
+}
+
+module Mount(){
+  translate([ -1,
+	      -mount_width/2,
+	      0 ])
+    cube([ mount_dist + mount_width/2 + 1,
+	   mount_width,
+	   mount_height ]);
+}
+
+module MountHole(){
+  translate([ mount_dist, 0,0 ]) {
+    translate([0,0, -1])
+      cylinder(r= mount_hole_dia/2, h= 20, $fn=20);
+    translate([0,0, mount_hole_th])
+      cylinder(r = mount_head_dia/2, h=20, $fn=20);
+  }
+}
+
+module Main(){
+  difference(){
+    union(){
+      MultiplySolidifyPlan(pos_web_thick) PositivePlan();
+      PositiveMidRounding();
+      MultiplyForMount() Mount();
+    }
+    MultiplySolidifyPlan(spike_web_thick) NegativePlan();
+    NegativeMidRounding();
+    MultiplyForMount() MountHole();
+  }
+}
+
 module PlanTest(){
   linear_extrude(height=2.0){
     difference(){
@@ -58,4 +131,24 @@ module PlanTest(){
   }
 }
 
-PlanTest();
+module MainFitTest(){
+  for (top = [0,1]) {
+    translate([ top * (mount_dist*2 + mount_width), 0,0 ]){
+      intersection(){
+	translate([0, 0, (-main_height + 0.5) * top])
+	  Main();
+	translate([-50,-50,0])
+	  cube([100,100,0.5]);
+      }
+    }
+  }
+}
+
+module Tests(){
+  translate([-mount_dist*3, 0,0])
+    PlanTest();
+  MainFitTest();
+}
+
+//Tests();
+Main();