From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Wed, 5 Jun 2013 20:37:49 +0000 (+0100)
Subject: anglepoise-neck: headpart nut hole
X-Git-Tag: filamentspool-v2-release~557
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=commitdiff_plain;h=5a68a4d0eaafe015d2f9cb1397a08618e10beebf

anglepoise-neck: headpart nut hole
---

diff --git a/anglepoise-neck.scad b/anglepoise-neck.scad
index 7559684..afe75a1 100644
--- a/anglepoise-neck.scad
+++ b/anglepoise-neck.scad
@@ -9,6 +9,8 @@ armpart_hex_rad = 15;
 armpart_hex_thick = 8;
 
 hingepin_dia = 3;
+hingenut_width = 6;
+hingenut_depth = 4;
 
 headpart_main_dia = 15 - 0.3;
 headpart_main_len = 14;
@@ -23,6 +25,9 @@ armpart_x_unit = armpart_hex_rad * tan(30);
 headpart_flatten_z = headpart_main_dia/2 * cos(headpart_flatten_angle);
 headpart_stub_support_x = headpart_stub_width * cos(59) / 2;
 headpart_stub_len = headpart_stub_protrude + headpart_main_dia/2;
+hingenut_depth_y =
+  sqrt(headpart_main_dia*headpart_main_dia/4 - hingenut_width*hingenut_width/4)
+  - hingenut_depth;
 
 module ArmPart(){ ////toplevel
   translate([-arm_innerwidth/2, 1, 0])
@@ -62,6 +67,12 @@ module HeadPart(){ ////toplevel
     }
     translate([-100,-100,-100])
       cube([200,200, 100 - headpart_flatten_z]);
+    rotate([90,0,0])
+      translate([0,0, -100])
+      cylinder(r=hingepin_dia/2, h = 200, $fn=20);
+    translate([0,hingenut_depth_y,0])
+      rotate([90,0,180])
+      cylinder(r=hingenut_width/2/cos(30), h=20, $fn=6);
   }
 }