From 38b0a3005b21c9edbf5d027f69873105310c696c Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 11 Oct 2017 00:38:14 +0100
Subject: [PATCH] poster-tube-lid: wip handling

---
 poster-tube-lid.scad | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index 69df5a0..c7e85f4 100644
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -9,6 +9,8 @@ top_middle_dr = 11;
 
 main_cnr = 6.0;
 
+min_wall = 4;
+
 rivet_posn = 6.0;
 rivet_thick = 1.67;
 rivet_width = 4.15 + 1.0;
@@ -81,6 +83,8 @@ rivet_entry_width = rivet_width + side_rivet_gap;
 
 jig_mark_rad = jig_mark + main_dia/2 + jig_thick;
 
+handling_dia = oring_bore + oring_thick*2 + min_wall*2;
+
 $fs= coarse ? 2.5 : 0.5;
 $fa= coarse ? 5 : 1;
 
@@ -200,7 +204,16 @@ module ProfilesDemo(){ ////toplevel
   translate([+10,0]) polygon(bayo_polygon, convexity=10);
 }
 
+module LimitForHandling(){ ////toplevel
+  for (r=[0,180])
+    rotate([0,0,r]) {
+      
+    }
+  cylinder(r= handling_dia/2, h=20);
+}
+
 module Cover(){ ////toplevel
+  %LimitForHandling();
   render() difference(){
     union(){
       rotate_extrude(convexity=10)
-- 
2.30.2