X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=anglepoise-neck.scad;h=aa39ce23bb5a79ceeccee0660912962cc88015e9;hp=afe75a1bfe00645ef47f3aea195e62bb34745941;hb=f1824fce4c0b4420e0ba377d8d8a4e43e42e4a7d;hpb=5a68a4d0eaafe015d2f9cb1397a08618e10beebf

diff --git a/anglepoise-neck.scad b/anglepoise-neck.scad
index afe75a1..aa39ce2 100644
--- a/anglepoise-neck.scad
+++ b/anglepoise-neck.scad
@@ -1,26 +1,31 @@
 // -*- C -*-
 
 arm_depth = 25;
-arm_pindepth = (16.15 + 18.00)/2;
 arm_innerwidth = 9.60 - 0.50;
 arm_innerheight = 8.90 - 0.50;
+arm_pin_depth = 18.50 + 1.0;
+arm_pin_dia = 1.5 + 0.7;
 
 armpart_hex_rad = 15;
-armpart_hex_thick = 8;
+armpart_main_thick = 8;
 
-hingepin_dia = 3;
-hingenut_width = 6;
+hingepin_dia = 3 + 1.0;
+hingenut_width = 6 + 1.0;
 hingenut_depth = 4;
+hingenut_clear = 5;
 
-headpart_main_dia = 15 - 0.3;
-headpart_main_len = 14;
+headpart_main_dia = 15 + 0.3;
+headpart_main_len = 16 + 1.1;
 headpart_stub_protrude = 2;
-headpart_stub_width = 11.7 - 0.3;
+headpart_stub_width = 11.7 - 0.6;
 
 headpart_flatten_angle = 45;
 
 // computed
 
+armpart_hinge_height = arm_innerheight + hingenut_width/2 + hingenut_clear;
+armpart_main_height = armpart_hinge_height + headpart_stub_width / 2;
+armpart_main_width = headpart_stub_width;
 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;
@@ -30,22 +35,20 @@ hingenut_depth_y =
   - hingenut_depth;
 
 module ArmPart(){ ////toplevel
-  translate([-arm_innerwidth/2, 1, 0])
-    mirror([0,-1,0])
-    cube([arm_innerwidth, arm_depth+1, arm_innerheight]);
-  rotate([90,0,180])
-    linear_extrude(height=armpart_hex_thick)
-    for (mir=[0,1])
-      mirror([mir,0,0])
-	difference(){
-	  polygon([[-1, 0],
-		   [armpart_x_unit, 0],
-		   [armpart_x_unit*2, armpart_hex_rad],
-		   [armpart_x_unit, armpart_hex_rad*2],
-		   [-1, armpart_hex_rad*2]]);
-	  translate([0,armpart_hex_rad])
-	    circle(hingepin_dia/2, $fn=20);
-        }
+  difference(){
+    translate([-arm_innerwidth/2, 1, 0])
+      mirror([0,-1,0])
+      cube([arm_innerwidth, arm_depth+1, arm_innerheight]);
+    translate([0, -arm_pin_depth, -50])
+      cylinder(r=arm_pin_dia/2, h=100, $fn=20);
+  }
+  difference(){
+    translate([-armpart_main_width/2, 0, 0])
+      cube([armpart_main_width, armpart_main_thick, armpart_main_height]);
+    translate([0,50,armpart_hinge_height])
+      rotate([90,0,0])
+      cylinder(r=hingepin_dia/2, h=100, $fn=20);
+  }
 }
 
 module HeadPart(){ ////toplevel
@@ -77,4 +80,4 @@ module HeadPart(){ ////toplevel
 }
 
 //ArmPart();
-HeadPart();
+//HeadPart();