diff --git a/Rotation-distance/X Y Z Rotation Distance (stepsmm ) calibration in Klipper. How  rklippers.md b/Rotation-distance/X Y Z Rotation Distance (stepsmm ) calibration in Klipper. How  rklippers.md
new file mode 100644
index 0000000..4f8fe2a
--- /dev/null
+++ b/Rotation-distance/X Y Z Rotation Distance (stepsmm ) calibration in Klipper. How  rklippers.md	
@@ -0,0 +1 @@
+new rotation distance = previous\_rotation\_distance\* measured lenght/requested lenght
\ No newline at end of file