From 330998483acdb85186375f3c94f65a2cc2038e2f Mon Sep 17 00:00:00 2001
From: Jonathan Bernard <jonathan@jdbernard.com>
Date: Tue, 30 Dec 2025 22:57:18 -0600
Subject: [PATCH] Backpack Organizer v8: layer 2, tweak SD card holder.

---
 backpack-organization/main-box.scad | 97 +++++++++++++++++++++++------
 1 file changed, 78 insertions(+), 19 deletions(-)

diff --git a/backpack-organization/main-box.scad b/backpack-organization/main-box.scad
index 5d79317..0b633c7 100644
--- a/backpack-organization/main-box.scad
+++ b/backpack-organization/main-box.scad
@@ -6,7 +6,7 @@ $fn=128;
 outerWall=4;
 innerWall=2;
 layerClearance = 0.5;
-verStr="v7";
+verStr="v8";
 font="Montserrat";
 
 // as a convention, outer dimensions refer to measurements from outside wall to
@@ -18,7 +18,6 @@ outerBoxWidth = 154;
 
 innerBoxLength = outerBoxLength - 2*outerWall;
 innerBoxWidth = outerBoxWidth - 2*outerWall;
-innerBoxHeight = 44;
 
 audioTraySide = 64;
 audioTrayHeight = 15;
@@ -26,15 +25,15 @@ audioTrayIS = audioTraySide - 2*innerWall;
 audioTrayIH = audioTrayHeight - innerWall;
 
 
-module audioLayer() {
-  oH = innerBoxHeight;
+module layer1() {
+  oH = 44;
   oL = innerBoxLength - 2*layerClearance;  // outer length
   oW = innerBoxWidth - 2*layerClearance;   // outer width
   iL = oL - 2*innerWall;              // inner length
   iW = oW - 2*innerWall;              // inner width
   iH = oH - innerWall; // inner height
 
-  handleDia=42;
+  handleDia = 42;
   cableDia = 130;
   translate([innerWall, innerWall, innerWall])
   union() {
@@ -53,7 +52,13 @@ module audioLayer() {
         translate([handleDia / 2, handleDia / 2, handleDia / 2])
           cylinder(d=handleDia, h = handleDia / 2 + innerWall);
 
-        translate([(handleDia - 32) / 2, handleDia / 2, 7]) cube([32, 102 - handleDia/2, oH]);
+        translate([handleDia / 2, handleDia / 2 + 3, handleDia / 2])
+          sphere(d=handleDia);
+
+        translate([handleDia / 2, handleDia / 2 + 3, handleDia / 2])
+          cylinder(d=handleDia, h = handleDia / 2 + innerWall);
+
+        translate([(handleDia - 32) / 2, handleDia / 2, 7]) cube([32, 103 - handleDia/2, oH]);
 
         // screw bits
         bitL = 112;
@@ -98,19 +103,23 @@ module audioLayer() {
 
       // SD-card adapter + SIM removal tool
       union() {
-        translate([iW - 26, 278, 9.5])
+        translate([iW - 27, 278, 9.5])
         rotate([0, 0, -45])
-        cube([24.5, 2, 33]);
+        cube([25, 2.5, 33]);
 
         translate([iW - 8, 280, 4.5])
         rotate([0, 0, -135])
-        cube([8.5, 1, 38]);
+        cube([8.75, 1.5, 38]);
 
         // fingerway
         translate([iW - 16, 271, iH + 15])
         sphere(d=46);
       }
 
+      // version marker
+      color("black")
+      translate([-innerWall + 0.6, 20, 4]) rotate([90, 0,-90])
+      linear_extrude(0.61) text(text = verStr, font = font, size = 8);
     }
 
     translate([handleDia*0.988, 77.5, -0.1])
@@ -129,6 +138,57 @@ module audioLayer() {
   }
 }
 
+module layer2() {
+  oH = 40;
+  oL = innerBoxLength - 2*layerClearance;  // outer length
+  oW = innerBoxWidth - 2*layerClearance;   // outer width
+  iL = oL - 2*innerWall;              // inner length
+  iW = oW - 2*innerWall;              // inner width
+  iH = oH - innerWall; // inner height
+
+  union() {
+
+    difference() {
+      roundedCube([oW, oL, oH], [1, 1, 1]);
+
+      translate([innerWall, innerWall, innerWall])
+      union() {
+        // HDD
+        translate([(iW - 131)/2, 0, 0])
+        cube([131, 83, oH]);
+
+        // Tekton tool kit
+        translate([2, 103 + innerWall, 0])
+        cube([105.5, 57, oH]);
+
+        // Slice knife
+        translate([114, 103 + innerWall, 0])
+        cube([22.5, 153, oH]);
+
+        // cables
+        translate([56, 224, 0])
+        cylinder(d=110, h=oH);
+
+        // fingerways
+        translate([30, 80, 0])
+        cube([36, 30, oH]);
+
+        translate([105, 126, 0])
+        cube([12, 36, oH]);
+      }
+
+      // version marker
+      color("black")
+      translate([0.6, 20 + innerWall, 4]) rotate([90, 0,-90])
+      linear_extrude(0.61) text(text = verStr, font = font, size = 8);
+    }
+
+    translate([32, 96, 0]) scale([6, 22, 1]) cylinder(d=1, h=oH);
+    translate([68, 96, 0]) scale([6, 22, 1]) cylinder(d=1, h=oH);
+    translate([112.75, 128, 0]) scale([6.5, 6, 1]) cylinder(d=1, h=oH);
+  }
+}
+
 module audioTrayBlank(s, h) {
   difference() {
     union() {
@@ -177,7 +237,7 @@ module audioTrayBlank(s, h) {
   }
 }
 
-module audioTray1() {
+module audioJackTray() {
   difference() {
     audioTrayBlank(s = audioTraySide, h = audioTrayHeight);
 
@@ -241,7 +301,7 @@ module audioTray1() {
   }
 }
 
-module audioTray2() {
+module drumKeyTray() {
   difference() {
     audioTrayBlank(s = audioTraySide, h = audioTrayHeight);
 
@@ -275,7 +335,7 @@ module audioTray2() {
   }
 }
 
-module audioTray3() {
+module headphoneAmpTray() {
   difference() {
     audioTrayBlank(s = audioTraySide, h = audioTrayHeight - 1);
 
@@ -336,7 +396,6 @@ module usbBitsTray() {
           cube([12, 22, 7]);
 
           // release wedge
-          //color("blue")
           translate([17, 0, 0])
           rotate([0, 30, 0])
           cube([8, 13, 7]);
@@ -357,7 +416,6 @@ module usbBitsTray() {
           cube([18, 29, 10]);
 
           // release wedge
-          //color("blue")
           translate([0, 28.5, -4])
           rotate([-20, 0, 0])
           translate([0, -29, 0])
@@ -368,8 +426,9 @@ module usbBitsTray() {
   }
 }
 
-//audioLayer();
-//translate([outerBoxWidth + 10, 0, 0]) audioTray1();
-translate([outerBoxWidth + 10, 80, 0]) usbBitsTray();
-//translate([outerBoxWidth + 10, 160, 0]) audioTray3();
-//translate([outerBoxWidth + 10, 240, 0]) audioTray2();
+layer1();
+//layer2();
+//translate([outerBoxWidth + 10, 0, 0]) audioJackTray();
+//translate([outerBoxWidth + 10, 80, 0]) usbBitsTray();
+//translate([outerBoxWidth + 10, 160, 0]) headphoneAmpTray();
+//translate([outerBoxWidth + 10, 240, 0]) drumKeyTray();