From ca044a9801bccfd3025b75c51ba55047ed86887d Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 28 Nov 2018 00:01:28 +0000
Subject: [PATCH] poster-tube-lid: Correct for when cpp11 above cpp10

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 poster-tube-lid.scad | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index b08eae2..c4892cd 100644
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -598,6 +598,15 @@ module CatchAssemblyCoreProfile(){
     }
     translate(cpp2) circle(r= catch_cr);
   }
+  // if cpp11 is above cpp10, the subtracted hull above
+  // can go down too far.  Ensure we do not cut off below cppy6.
+  polygon([ cppE,
+	    cppD,
+	    cpp9,
+	    [ cpp9[0],            cppy6 ],
+	    [ cpp7[0] - catch_cr, cppy6 ],
+	    cpp2d
+	    ]);
 }
 
 module CatchHeadProfile(){
-- 
2.30.2