From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Fri, 1 Mar 2019 20:40:22 +0000 (+0000)
Subject: salter-scale-hook: ScrewHole
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=76e263a62e1cf45ec017b6b5b07804fb67b5b5c1;p=reprap-play.git

salter-scale-hook: ScrewHole

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/salter-scale-hook.scad b/salter-scale-hook.scad
index 1edeee2..3a8cfa3 100644
--- a/salter-scale-hook.scad
+++ b/salter-scale-hook.scad
@@ -10,7 +10,7 @@ rod_offset = 14 + 2;
 mainheight = 25;
 width = 40;
 rearthick = 4;
-screw_head_depth = 3;
+screw_head_depth = 2;
 
 // calculated
 
@@ -71,8 +71,14 @@ module Cut(less){
 }
 
 module ScrewHole(){
+  xd =  (screw_head_dia-screw_dia)/2;
   translate([0,0,-50])
     cylinder(h=100, r= screw_dia/2, $fn=20);
+  hull(){
+    translate([0,0,-xd])
+      cylinder(h=1, r= screw_dia/2, $fn=50);
+    cylinder(h=20, r= screw_head_dia/2, $fn=50);
+  }
 }
 
 module Hook(){
@@ -92,7 +98,7 @@ module Hook(){
     translate([rod_dia/2 + screw_head_depth,
 	       ymaxc - screw_head_dia,
 	       0]) {
-      rotate([0,90,0])
+      rotate([0,-90,0])
 	ScrewHole();
     }
   }