From 363defbb545ca091249f04dc41125a37acc6cd03 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 14 Dec 2015 00:42:33 +0000
Subject: [PATCH] filamentspool: Reorg so axle hole is subtracted from whole
 hub (nfc)

---
 filamentspool.scad | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/filamentspool.scad b/filamentspool.scad
index 3194112..5e52e62 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -241,15 +241,14 @@ module Hub(){ ////toplevel
   xmax = hubbigrad-hublwidth/2;
   hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
   holewidth = DoveClipPairSane_width() - hubstemwidth*2;
+  difference(){
+    union(){
   difference(){
     cylinder($fn=60, h=hublthick, r=hubbigrad);
     translate([0,0,-1])
       cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
   }
-  difference(){
     cylinder(h=hubaxlelen, r=axlerad+hublwidth);
-    translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
-  }
   for (ang=[0,120,240])
     rotate([0,0,ang]) {
       difference() {
@@ -271,6 +270,9 @@ module Hub(){ ////toplevel
 		 [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
     }
 }
+    translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
+  }
+}
 
 module ArmExtender(){ ////toplevel
   DoveClipExtender(length=exteffrad-hubeffrad,
-- 
2.30.2