From a5311d45a12b1ab433e478424f766c00079bcd0c Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 9 Sep 2017 16:08:00 +0100
Subject: [PATCH] sprinkler-spike-receptacle: wip

---
 sprinkler-spike-receptacle.scad | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/sprinkler-spike-receptacle.scad b/sprinkler-spike-receptacle.scad
index 2c8534f..09d596f 100644
--- a/sprinkler-spike-receptacle.scad
+++ b/sprinkler-spike-receptacle.scad
@@ -9,6 +9,10 @@ spike_botpos_width = 11.68;
 
 topwall_width = 1.5;
 
+// calculated
+
+main_width = spike_top_width + topwall_width*2;
+
 module NegativePlan(){
   x4z =
     (spike_top_width - spike_botpos_width) /
@@ -21,16 +25,37 @@ module NegativePlan(){
   polygon([[ x0, -5],
 	   [ x0, 0],
 	   [ x1, z1],
+	   [ x1, z1+5],
+	   [-x1, z1+5],
 	   [-x1, z1],
 	   [-x0, 0],
 	   [-x0, -5]]);
 }
 
 module PositivePlan(){
-  w = spike_top_width + topwall_width*2;
+  w = main_width;
   translate([ -w/2, 0 ])
     square([ w, main_height ]);
 }
 
-PositivePlan();
-//NegativePlan();  
+module PlanTest(){
+  linear_extrude(height=2.0){
+    difference(){
+      PositivePlan();
+      NegativePlan();
+    }
+    difference(){
+      circle(r = spike_botpos_width/2 + 5);
+      circle(r = spike_botpos_width/2);
+      translate([-50, 0]) square([100,50]);
+    }
+  }
+  linear_extrude(height=4.0){
+    difference(){
+      translate([ -main_width/2, 0 ]) square([ main_width, 2 ]);
+      NegativePlan();
+    }
+  }
+}
+
+PlanTest();
-- 
2.30.2