diff --git a/pins.h b/pins.h
index 962a538665cf532ff423bafb821f9d85a0543281..7ddff96034ae041f49221017608afd87f8585e96 100644
--- a/pins.h
+++ b/pins.h
@@ -35,9 +35,9 @@
 #define startXP 33  //EXT C,1
 #define startYP 34  //EXT C,2
 #define startZP 35  //EXT C,3
-#define startXM 33  //EXT C,4
-#define startYM 34  //EXT C,5
-#define startZM 35  //EXT C,6
+#define startXM 17  //EXT C,4
+#define startYM 18  //EXT C,5
+#define startZM 19  //EXT C,6
 
 //brake outputs