From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 11 Oct 2017 00:02:42 +0000 (+0100)
Subject: poster-tube-lid: LimitForHandling: lobe parts
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=commitdiff_plain;h=a3626ebc9ac5cfe32d97bd0b5c1e514643c1efe2

poster-tube-lid: LimitForHandling: lobe parts
---

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index d0986c9..498a4a9 100644
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -84,6 +84,7 @@ 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;
+handling_angle = 45;
 
 $fs= coarse ? 2.5 : 0.5;
 $fa= coarse ? 5 : 1;
@@ -210,9 +211,21 @@ module ProfilesDemo(){ ////toplevel
 }
 
 module LimitForHandling(){ ////toplevel
-  for (r=[0,180])
+  hull() for (r=[0,180])
     rotate([0,0,r]) {
-      
+      for (rs=[-1,+1]) {
+	for (xd=[0,1]) {
+	  rotate([0,0, rs * handling_angle/2]) {
+	    translate([rs * xd * main_dia/2 * tan(handling_angle/2),
+		       main_dia/2 + side_thick - main_cnr,
+		       top_z - main_cnr]) {
+	      mirror([0,0,1])
+		cylinder(r= main_cnr, h=50);
+	      sphere(main_cnr);
+	    }
+	  }
+	}
+      } 
     }
   hull() rotate_extrude(){
     translate([ handling_dia/2 - main_cnr, top_z - main_cnr ]) {
@@ -233,7 +246,7 @@ module Cover(){ ////toplevel
 	translate([0,0, middle_bot_z])
 	  cylinder(h= top_thick_middle, r = main_dia/2 - top_middle_dr + 1);
       }
-      %LimitForHandling();
+      LimitForHandling();
     }
     for (r=[0,180]){
       rotate([0,0, r])