diff --git a/transformations.scad b/transformations.scad
new file mode 100644
index 0000000..b180f58
--- /dev/null
+++ b/transformations.scad
@@ -0,0 +1,3 @@
+module scale(v, reference=[0, 0, 0]) {
+    translate(-reference) scale(v) translate(reference) child(0);
+}