X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=lock-inframe-bracket.scad;h=bdd8660390e2364d617566c69837558e240d8bff;hb=679bd0cf55cccf899298090493c9e0e64a90d932;hp=3ec84dd75fd3787e3edbd2cedf5568198dce2c2d;hpb=2e27a4929abe42c250837a784c21f6b134e54f50;p=reprap-play.git

diff --git a/lock-inframe-bracket.scad b/lock-inframe-bracket.scad
index 3ec84dd..bdd8660 100644
--- a/lock-inframe-bracket.scad
+++ b/lock-inframe-bracket.scad
@@ -12,8 +12,8 @@ lockshaft_dia = 14.35;
 cliprecess_h = 16;
 total_h = 45;
 
-back_gap = 10;
-main_th = 2.5;
+back_gap = 11;
+main_th = 2.75;
 tube_th = 2.25;
 
 midweb_d = 3;
@@ -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]);