diff --git a/README.md b/README.md
index a90ec77..d8f2746 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,10 @@ A big vending machine for your front garden
 * Material: PLA
 * Supports: no
 
+Hints:
+* Align the elements so that the outer shell lines match the sliding direction
+* the stl files are not (yet) correctly aligned for printing. please rotate
+
 ## Contributing
 
 Feel free to remix this design and/or send pull requests to me.