diff --git a/rrf3.x/macros/Coupler - Lock b/rrf3.x/macros/Coupler - Lock
index 35b2cbdbb3310a21890511bff9f14fc266034bc3..45722e4fc18b400dc25ed4ff55d56099ddb9171d 100644
--- a/rrf3.x/macros/Coupler - Lock	
+++ b/rrf3.x/macros/Coupler - Lock	
@@ -1,2 +1,2 @@
-G1 C40 F10000
+G1 C0 F10000
 M400
diff --git a/rrf3.x/macros/Coupler - Unlock b/rrf3.x/macros/Coupler - Unlock
index 52f80cdfeec4ab303d9d7e3b4f476662e365c928..c38d8f9fb2ff73c71603911f3879af7e15f1f7d6 100644
--- a/rrf3.x/macros/Coupler - Unlock	
+++ b/rrf3.x/macros/Coupler - Unlock	
@@ -1,2 +1,2 @@
-G1 C241 F10000
+G1 C90 F10000
 M400
diff --git a/rrf3.x/sys/config.g b/rrf3.x/sys/config.g
index 2a28ab2e4bea013c4a3ef52a25ca6dd6ef0d0875..99cf2be3a1cdfbd35f28615a542c7ba8d08b1215 100644
--- a/rrf3.x/sys/config.g
+++ b/rrf3.x/sys/config.g
@@ -31,8 +31,8 @@ M569 P8 S0 						; Drive 8 UNUSED
 M569 P9 S0 						; Drive 9 UNUSED
 
 M584 X0 Y1 Z2 C7 E3:4:5:6 								; Apply custom drive mapping
-M208 X-35:328.5 Y-49:243 Z0:300 C-45:360	 				; Set axis maxima & minima
-M92 X100 Y100 Z1600 C91.022 E834:834:834:834				; Set steps per mm assuming x16 microstepping
+M208 X-35:328.5 Y-49:243 Z0:300 C-45:180	 				; Set axis maxima & minima
+M92 X100 Y100 Z1600 C182.044 E834:834:834:834				; Set steps per mm assuming x16 microstepping
 M350 E16:16:16:16 I1 									; Configure microstepping with interpolation
 M350 C16 I10											; Configure microstepping without interpolation
 M350 X16 Y16 Z16 I1										; Configure microstepping with interpolation