sealing-box: closer inner buttress

diff --git a/sealing-box.scad.m4 b/sealing-box.scad.m4
index c9c530cfcc3c49164c03e9de785a645ebf8a3cc3..dbfb220f9519b7535a4ec66f16a40ce6d588b30b 100644 (file)
--- 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(){