diff --git a/js/acceleration.js b/js/acceleration.js
index 8cc7fb8..505d620 100644
--- a/js/acceleration.js
+++ b/js/acceleration.js
@@ -486,7 +486,7 @@ G1 E-5.0000 F2400
 ;fan2
 ; feature inner perimeter
 ; tool H0.200 W0.480
-G1 Z0.600 F1200
+G1 Z0.800 F1200
 G1 X25.220 Y95.847 F6000
 G1 Z0.400 F1200
 G1 E0.0000 F2400