Make the defaults a boring standard-size chip

chip.scad

@@ -1,17 +1,17 @@
 // Diameter of the coin (mm)
-diameter = 22;
+diameter = 39;
 
 // Height of the coin (mm)
-height = 2;
+height = 3.5;
 
 // Engraving depth (mm)
 depth = 0.5;
 
 // Number of sides on your coin
-sides = 6; // [3:360]
+sides = 360; // [3:360]
 
 // How many holes (spokes) do you want?
-holes = 24; // [0:12]
+holes = 6; // [0:12]
 
 // Text to display
 text = "100";