From c74808497ebbffdc448f4d5dfc72e91adc6ff547 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 31 May 2022 18:23:39 +0100
Subject: [PATCH] laptop-sound-cable-hooks: wip

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 laptop-sound-cable-hooks.scad | 48 ++++++++++++++++++++++++++++++-----
 1 file changed, 42 insertions(+), 6 deletions(-)

diff --git a/laptop-sound-cable-hooks.scad b/laptop-sound-cable-hooks.scad
index c32b97d..9a22ed4 100644
--- a/laptop-sound-cable-hooks.scad
+++ b/laptop-sound-cable-hooks.scad
@@ -3,6 +3,8 @@
 include <utils.scad>
 
 wall_th = 2;
+hook_th = 4;
+hook_hole = 4;
 
 plug_l_d = [[ 27.78,
 	      10.62 + 0.50 ],
@@ -13,6 +15,23 @@ plug_l_d = [[ 27.78,
 plug_stem = [ 2.72 + 0.50,
 	      5.20 + 0.50 ];
 
+palmrest_from_plug_z = 3.98;
+laptop_th = 16.31 + 0.75;
+
+tongue_len = 50;
+
+// calculated
+
+
+hook_th_plug_holder =
+  plug_l_d[0][1]/2 + wall_th * sin(22.5);
+
+hook_tongue_h = hook_hole + wall_th*2;
+
+plug_hook_z_laptop_base = palmrest_from_plug_z - laptop_th;
+plug_hook_z_min = palmrest_from_plug_z - hook_tongue_h;
+plug_hook_x_min = -plug_l_d[len(plug_l_d)-1][0] - wall_th;
+
 module PlugMainPlan() {
   for (l_d = plug_l_d) {
     l = l_d[0];
@@ -32,9 +51,14 @@ module PlugHolderPlan() {
   }
 }
 
-module DemoPlan() {
-  translate([0,0,-5]) color("grey") PlugHolderPlan();
-  PlugMainPlan();
+module PlugHookHookPlan(){
+  polygon([ [ plug_hook_x_min, 0 ],
+	    [ plug_hook_x_min + -plug_hook_z_min, plug_hook_z_min ],
+	    [ tongue_len, plug_hook_z_min ],
+	    [ tongue_len, plug_hook_z_laptop_base ],
+	    [ 0, plug_hook_z_laptop_base ],
+	    [ 0, 0 ],
+	    ]);
 }
 
 module RotateIntersect(n=6){
@@ -46,8 +70,14 @@ module RotateIntersect(n=6){
 
 module PlugHolder(){
   difference(){
-    RotateIntersect(8)
-      PlugHolderPlan();
+    union(){
+      RotateIntersect(8)
+	PlugHolderPlan();
+
+      linextr_y_xz(-hook_th_plug_holder,
+		   +hook_th_plug_holder)
+	PlugHookHookPlan();
+    }
 
     RotateIntersect(6)
       PlugMainPlan();
@@ -58,5 +88,11 @@ module PlugHolder(){
   }
 }
 
+module DemoPlan() {
+  translate([0,0,-5]) color("grey") PlugHolderPlan();
+  PlugMainPlan();
+}
+
 //DemoPlan();
-render() PlugHolder();
+PlugHookHookPlan();
+//render() PlugHolder();
-- 
2.30.2