Case for MKS - bottom part

MKS Gen L v1.0/Case.scad

@@ -1,26 +1,94 @@
-
 // MKS Gen L v1.0
 width = 110;
 depth = 84;
 height = 25;
-thickness=2;
+thickness = 3;
 mount_peg = 3;
-spacing=2;
+spacing = 10;
 
 peg_up = 3;
 peg_bottom = 8;
 pcb_thickness = 1.5;
+screw_size = height - thickness; // 10;
 
 // 
 $fn = 100;
 
-base(mount_peg);
+//bottom_part();
-walls();
 
-color("green") {
+top_part();
+
+
+module bottom_part() {
+    union() {
+        base();
+        walls();
+        screw_mounts();
+    }
 }
 
-module base(d1){
+module top_part() {
+    x = width + 2 * spacing;
+    y = depth + 2 * spacing;
+
+    d = (peg_up + 2) / 2 + 2;
+    h = height - thickness + 2;
+
+    difference() {
+        translate([0, 0, height - thickness])
+            cube([x, y, thickness]);
+
+        screw_cutoff();
+
+        translate([x - 8, 0, 0])
+            screw_cutoff();
+        translate([0, y - 8, 0])
+            screw_cutoff();
+        translate([x - 8, y - 8, 0])
+            screw_cutoff();
+    }
+}
+
+module screw_mounts() {
+    d = (peg_up) + 1;
+    x = width + 2 * spacing - 4;
+    y = depth + 2 * spacing - 4;
+
+    h = 0; //height - (screw_size + thickness);
+
+    translate([d, d, h])
+        rotate([0, 0, 180])
+            screw_mount();
+
+    translate([x, d, h])
+        rotate([0, 0, - 90])
+            screw_mount();
+
+    translate([d, y, h])
+        rotate([0, 0, 90])
+            screw_mount();
+
+    translate([x, y, h])
+        screw_mount();
+}
+
+
+module screw_mount() {
+    difference() {
+        union() {
+            cylinder(h = screw_size, d = peg_up + 3);
+            translate([0, - peg_up, 0])
+                cube([peg_up * 2, peg_up * 2, screw_size]);
+            translate([- peg_up, 0, 0])
+                cube([peg_up * 2, peg_up * 2, screw_size]);
+        }
+        translate([0, 0, - screw_size * 0.1])
+            cylinder(h = screw_size * 1.3, d = peg_up);
+    }
+}
+
+module base() {
+    d1 = mount_peg;
     x = width + 2 * spacing;
     y = depth + 2 * spacing;
 
@@ -48,8 +116,21 @@ module walls(){
             translate([- spacing * 1.5, 32, 5])
                 cube([spacing * 2, 21, 6]);
         }
+
+        // usb
+        translate([0, 0, thickness + pcb_thickness]) {
+            translate([21, - spacing * 1.5, 5])
+                cube([12, spacing * 2, 11]);
         }
 
+        // holes for mounts
+        translate([30, depth + thickness * 3.5, thickness + 10])
+            rotate([90, 0, 0])
+                cylinder(h = thickness * 2, d = 3);
+        translate([width - 30, depth + thickness * 3.5, thickness + 10])
+            rotate([90, 0, 0])
+                cylinder(h = thickness * 2, d = 3);
+    }
 }
 
 module walls_basic() {
@@ -70,3 +151,13 @@ module peg(h) {
     cylinder(h = h, d = peg_bottom);
     cylinder(h = h * 3, d = peg_up);
 }
+
+module screw_cutoff() {
+    d = (peg_up + 5) / 2;
+    h = height - thickness + 2;
+
+    translate([d, d, h])
+        cylinder(h = 2, d1 = 3, d2 = 6);
+    translate([d, d, h - 2])
+        cylinder(h = 2, d = 3);
+}