From 0956d1acb5127f393e3105e0ff7ef1f226edc12e Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Mon, 9 Oct 2017 02:10:14 +0100
Subject: [PATCH] poster-tube-lid: convert to oring: oring space done I think

---
 poster-tube-lid.scad | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index b9bf7e6..3bad52e 100644
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -21,7 +21,7 @@ bayo_interf_slope = 0.75;
 oring_thick = 5.0;
 oring_bore = 62.0;
 
-oring_upper_embed_angle = 45;
+oring_upper_embed_angle = 80;
 oring_compress = 0.1; // proportion
 
 side_taper = 1.0;
@@ -135,10 +135,14 @@ module MainProfile(){
 	       ],
 	      convexity=10);
     }
-    %translate([ oring_mid_dia/2 - main_dia/2,
-		 oring_y_rad ])
-       scale([ 1/oring_oblate, oring_oblate ])
-       circle(oring_thick/2);
+    translate([ oring_mid_dia/2 - main_dia/2, 0 ])
+      hull(){
+      translate([ 0, oring_y_rad ])
+	scale([ 1/oring_oblate, oring_oblate ])
+	circle(oring_thick/2);
+      translate([ 0, oring_y_rad*2 - oring_thick/2 ])
+	circle(oring_thick/2);
+    }
   }
 }
 
-- 
2.30.2