more designs

rod.scad

@@ -0,0 +1,9 @@
+diam = 12.5;
+difference()
+{
+    translate([0,0,4.5])
+    rotate([90,0,0])
+    cylinder(r=diam/2, h=200, center=true, $fn=100);
+    translate([0,0,-250])
+    cube(size=[500, 500, 500], center=true);
+}