diff --git a/src/m_scaling.scad b/src/m_scaling.scad
new file mode 100644
index 00000000..64c6a501
--- /dev/null
+++ b/src/m_scaling.scad
@@ -0,0 +1,6 @@
+function m_scaling(v) = [
+    [v[0], 0, 0, 0],
+    [0, v[1], 0, 0],
+    [0, 0, v[2], 0],
+    [0, 0, 0, 1]
+];
\ No newline at end of file