From 3a639bb14ab6415ffc16a8ba34154bd206dcee91 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 13 Feb 2016 16:13:41 +0000
Subject: [PATCH] bike-lipo-box-gland: different approach

---
 bike-lipo-box-gland.scad | 59 ++++++++++++++++++++++++++--------------
 1 file changed, 39 insertions(+), 20 deletions(-)

diff --git a/bike-lipo-box-gland.scad b/bike-lipo-box-gland.scad
index df645f9..e4c8cf4 100644
--- a/bike-lipo-box-gland.scad
+++ b/bike-lipo-box-gland.scad
@@ -2,37 +2,56 @@
 
 include <commitid.scad>
 
-module Gland(){
-    hull(){
-      for (m=[0,1]) {
-	mirror([0,0, m]) {
-	  translate([0,0, 1.5 + (25-13)/2]) cylinder(r=13 /2 , h=0.5);
-	  translate([0,0, 1.5]) cylinder(r=25 / 2, h=0.5);
-	}
-      }
-    }
+cable_dias = [6.5, 8.2];
+
+cd = cable_dias[1] + 0.5;
+wall = 2.5;
+
+function Gland_xlen(cabledia)    = cabledia * 1.5;
+function Gland_xdia(cabledia)    = cabledia * 2.0;
+function Gland_xoutdia(cabledia) = Gland_xdia(cabledia) * 1.1 + 0.5;
+
+// origin is centre, on outside
+// outside is in direction of positive X axies
+module GlandNegative(cabledia){
+  xlen = Gland_xlen(cabledia);
+  xdia = Gland_xdia(cabledia);
+
+  hull(){
+    rotate([0,90,0]) cylinder(r= cabledia/2, h=1);
+    translate([xdia,0,0]) rotate([0,90,0]) cylinder(r= xdia/2, h=1);
+  }
+  translate([-10,0,0])
+    rotate([0,90,0])
+    cylinder(r= cabledia/2, h=11);
 }
 
+module GlandPositive(cabledia){
+  translate([-0.1, 0,0])
+    rotate([0,90,0])
+    cylinder(r= Gland_xoutdia(cabledia)/2, h= Gland_xlen(cabledia) + 0.1);
+}  
+
+platesz = [wall, 24, 28];
+plateoff = [-platesz[0]/2, -platesz[1]/2, -platesz[2] + platesz[1]/2];
+
 module Plate(){
   difference(){
     union(){
-      Gland();
-      translate([-20,-20,-1.5])
-	cube([40,40,3]);
+      GlandPositive(cd);
+      translate(plateoff)
+	cube(platesz);
     }
-    translate([0,0,-50])
-      cylinder(r=12.5 / 2, h=100);
+    GlandNegative(cd);
   }
 }
 
 module Test(){
-  rotate([90,0,0])
-    translate([0, 20, 0])
-    Plate();
-  translate([-20,-20,0]){
+  Plate();
+  translate(plateoff){
     difference(){
-      cube([40,20,1.2]);
-      Commitid_BestCount_M([40,20]);
+      cube([15, 20, 1.2]);
+      Commitid_BestCount_M([15, 20]);
     }
   }
 }
-- 
2.30.2