poster-tube-lid: break out StrapMountProtrusion (nfc)

diff --git a/poster-tube-lid.scad b/poster-tube-lid.scad
index 53b1ab4bae3bda58c0102d3bec9784f835b64ce9..a354a4c3d06fc9254e3c5805d0c716a52236dc06 100644 (file)
--- a/poster-tube-lid.scad
+++ b/poster-tube-lid.scad
@@ -410,22 +410,26 @@ module StrapMountBolt(l_delta){ ///toplevel
   }
 }
 
   }
 }
 

+module StrapMountProtrusion(half_x, max_y){
+  translate(smc_pos){
+    linear_extrude(height=sm_main_width, convexity=10){
+      hull(){
+       for (m = [0,1]) mirror([m,0,0]) {
+         translate([-(half_x - sm_closure_cnr), max_y - sm_closure_cnr])
+           circle(r=sm_closure_cnr);
+         translate([-half_x, -sm_inner_rad])
+           square([1,1]);
+       }
+      }
+    }
+  }
+}
+

 module StrapMount(){ ////toplevel
   difference(){
     union(){
       cylinder(r=sm_outer_rad, h=sm_main_width);
 module StrapMount(){ ////toplevel
   difference(){
     union(){
       cylinder(r=sm_outer_rad, h=sm_main_width);

-      translate(smc_pos){
-       linear_extrude(height=sm_main_width, convexity=10){
-         hull(){
-           for (m = [0,1]) mirror([m,0,0]) {
-             translate([-smc_cnr_c_x, smc_max_y - sm_closure_cnr])
-               circle(r=sm_closure_cnr);
-             translate([-smc_cnr_c_x-sm_closure_cnr, -sm_inner_rad])
-               square([1,1]);
-           }
-         }
-       }
-      }
+      StrapMountProtrusion(smc_cnr_c_x + sm_closure_cnr, smc_max_y);

     }
     translate([0,0,-1])
       cylinder(r=sm_inner_rad, h=sm_main_width+2);
     }
     translate([0,0,-1])
       cylinder(r=sm_inner_rad, h=sm_main_width+2);