diff --git a/src/litegrip/factory_calibration.json b/src/litegrip/factory_calibration.json
index 07684e2..fed09d2 100644
--- a/src/litegrip/factory_calibration.json
+++ b/src/litegrip/factory_calibration.json
@@ -3,12 +3,12 @@
   "can_id": 8,
   "mst_id": 24,
   "canfd_mode": false,
-  "zero_position_rad": 0.114,
-  "max_position_rad": -1.491,
-  "travel_range_rad": 1.605,
-  "rad_to_mm": 74.8,
+  "zero_position_rad": 0.052071,
+  "max_position_rad": -1.357481,
+  "travel_range_rad": 1.409552,
+  "rad_to_mm": 61.01229326764816,
   "motor_type": "DM4310",
-  "kp": 100.0,
+  "kp": 5.0,
   "kd": 2.0,
   "grasp_torque_threshold": 0.5
 }