diff --git a/common.scad b/common.scad
index c0f1366..09a6452 100644
--- a/common.scad
+++ b/common.scad
@@ -57,10 +57,6 @@ module sub_c_battery () {
   cylinder(r = (x + x_fuzz) / 2, h = y + y_fuzz, center = true);
 }
 
-module hex (r = 1, h = 1, center = false) {
-  cylinder(r = r, h = h, center = center, $fn = 6);
-}
-
 module cone_45 (d = 1, center = false) {
   cylinder(r1 = d/2, r2 = 0, h = d, center = center);
 }