Initial rpi4 cover

cad/display.scad

@@ -1,4 +1,4 @@
-$fn=16*2;
+$fn=32*2;
 
 thinkness=1.6;
 width=208.5;
@@ -30,6 +30,9 @@ usb_floor();
 // battery floor
 battery_floor(145);
 
+// raspberry pi 4 cover
+rpi4_cover();
+
 module usb_floor(){
   offset=5.6+thinkness;
   hole=6;
@@ -69,4 +72,30 @@ module battery_floor(x){
       translate([x+thinkness+5, depth+(thinkness*2)-offset, height+4])
         cylinder(h=thinkness, d=hole);
     }
+}
+
+module rpi4_cover(){
+    difference(){
+      translate([31+thinkness+10, 0, height])
+        cube([104, depth+(thinkness*2), 25+thinkness]);
+
+      translate([31+thinkness+10, thinkness, height])
+        cube([104, depth, 25]);
+
+      translate([31+thinkness+62, (depth+(thinkness*2))/2, height+25])
+        cylinder(h=thinkness, d=42);
+    }
+
+    translate([17+thinkness, 0, height+2.6])
+      #prism(24, thinkness, 24);
+
+    // MK Logo
+    translate([31+thinkness+62, (depth+(thinkness*2))/2, height+25])
+      import("mk-logo.stl");
+}
+
+module prism(l, w, h){
+  polyhedron(
+    points=[[0,w,0], [0,0,0], [l,0,0], [l,w,0], [l,w,h], [l,0,h]],
+    faces=[[0,1,2,3],[5,4,3,2],[0,4,5,1],[0,3,4],[5,2,1]]);
 }