diff --git a/spf/grbl/grbl_interactive.py b/spf/grbl/grbl_interactive.py
index 2fe507ed..b200ed9c 100644
--- a/spf/grbl/grbl_interactive.py
+++ b/spf/grbl/grbl_interactive.py
@@ -16,7 +16,7 @@
 home_pB = np.array([0, 0])
 home_bounding_box = np.array(
     [
-        [500, 450],
+        [500, 400],
         [3000, 450],
         [3000, 2800],
         [1900, 2800],
@@ -65,7 +65,7 @@ def stop_grbl():
 would be no tension on the GT2 belts
 
 """
-home_calibration_point = np.array([500, 450])
+home_calibration_point = np.array([500, 400])
 
 
 def a_to_b_in_stepsize_np(a, b, step_size):