Add new catalog directory to store various rack-mount part configs. Also add some old beelink and mele mini pc tray configs.

rack-mount/catalog/rpi-sbc-simple-box/top.scad

@@ -0,0 +1,21 @@
+
+difference() {
+  union() {
+    cube(size=[67,95.7,1]);
+    translate(v=[2,2,1])
+    cube(size=[63.2,92,3]);
+  }
+
+  union() {
+    translate(v=[3.5, 3.8,1])
+      cube(size=[60,88,3]);
+
+    for(i=[0:7]) {
+      translate(v=[33.5,i*10 + 12,0])
+      minkowski() {
+        cylinder(h=1,r=1);
+        cube(size=[50,5,10], center=true);
+      }
+    }
+  }
+}