poster-tube-lid: introduce top_middle_dr (instead of hardcoding 11)

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index 9b95f0098fe6fa45751f1ab275cc53fc2e0cea2a..79dc6ea8e7f278a6457e10bca6d51e110fca6c09 100644 (file)
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -3,6 +3,7 @@
 main_dia = 71.2 + 0.50 - 2.26;
 top_minthick_middle = 4;
 top_minthick_by_oring = 2.5;
+top_middle_dr = 11;
 
 main_cnr = 4.0;
 
@@ -132,8 +133,8 @@ module MainProfile(){
          square([10,10]);
        }
       }
-      polygon([[ -11,                   middle_bot_z      ],
-              [ -11,                   top_z             ],
+      polygon([[ -top_middle_dr,        middle_bot_z      ],
+              [ -top_middle_dr,        top_z             ],
               [ main_cnr_pos[0],       top_z             ],
               [ side_thick,            main_cnr_pos[1]   ],
               [ side_thick,            -side_height      ],
@@ -203,7 +204,7 @@ module Cover(){ ////toplevel
        translate([main_dia/2, 0])
        MainProfile();
       translate([0,0, middle_bot_z])
-       cylinder(h= top_minthick_middle, r = main_dia/2 - 10);
+       cylinder(h= top_minthick_middle, r = main_dia/2 - top_middle_dr + 1);
     }
     for (r=[0,180])
       rotate([0,0, r])