lock-inframe-bracket: Provide tube_rear_extra_th

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index 6f33a116494865b522f7e0fe4dbce007b44ce8a5..bdd8660390e2364d617566c69837558e240d8bff 100644 (file)
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -30,6 +30,8 @@ $fn=50;
 
 join_cr = 7;
 
+tube_rear_extra_th = 1;
+
 // calculated
 
 lockshaft_r = [1, 1] * lockshaft_dia / 2;
@@ -78,7 +80,11 @@ module JoinCircs(jr){
 module MainPlan(){
   difference(){
     union(){
-      circle(r = tube_or);
+      hull(){
+       for (t=[0, tube_rear_extra_th])
+         translate([0, -t])
+           circle(r = tube_or);
+      }
       translate([-back_ohw,0]) mirror([0,1])
        square([back_ohw*2, backflange_ymin]);