From 8137d9628fb3936cab7fe06faa2705fa12f918df Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 14 Feb 2016 15:57:58 +0000
Subject: [PATCH] sealing-box: closer inner buttress

---
 sealing-box.scad.m4 | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sealing-box.scad.m4 b/sealing-box.scad.m4
index c9c530c..dbfb220 100644
--- a/sealing-box.scad.m4
+++ b/sealing-box.scad.m4
@@ -29,6 +29,7 @@
 
 $sealingbox_cnrrad = 10;
 $sealingbox_crude = false;
+$sealingbox_inner_slop = 0.2;
 
 m4_define(`BoxLocals',`
   xbox = $sealingbox_sz[0];
@@ -145,6 +146,13 @@ module SealingBox_LidProfile(){
 	}
     }
   }
+  translate([tubesealrad*2 + $sealingbox_inner_slop,
+	     zbox + ceilth]) {
+    mirror([0,1]) {
+      square([lidoverlap + innertube,
+	      inner_buttress_h]);
+    }
+  }
 }
 
 module SealingBox_CeilProfile(){
-- 
2.30.2