diff --git a/.gitignore b/.gitignore
index 51d4de2..91910c9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -241,5 +241,5 @@ unilabos/device_mesh/view_robot.rviz
 # Certs
 **/.certs
 local_test2.py
-*.tar.bz2
-*.tar.gz
+ros-humble-unilabos-msgs-0.9.13-h6403a04_5.tar.bz2
+*.bz2
diff --git a/unilabos/devices/liquid_handling/liquid_handler_abstract.py b/unilabos/devices/liquid_handling/liquid_handler_abstract.py
index 242fcb3..d44a9ae 100644
--- a/unilabos/devices/liquid_handling/liquid_handler_abstract.py
+++ b/unilabos/devices/liquid_handling/liquid_handler_abstract.py
@@ -104,6 +104,8 @@ class LiquidHandlerMiddleware(LiquidHandler):
         offsets: Optional[List[Coordinate]] = None,
         **backend_kwargs,
     ):
+        print('222'*200)
+        print(tip_spots)
         if self._simulator:
             return await self._simulate_handler.pick_up_tips(tip_spots, use_channels, offsets, **backend_kwargs)
         return await super().pick_up_tips(tip_spots, use_channels, offsets, **backend_kwargs)
diff --git a/unilabos/devices/liquid_handling/prcxi/prcxi.py b/unilabos/devices/liquid_handling/prcxi/prcxi.py
index 602fa7a..155e099 100644
--- a/unilabos/devices/liquid_handling/prcxi/prcxi.py
+++ b/unilabos/devices/liquid_handling/prcxi/prcxi.py
@@ -1279,22 +1279,23 @@ if __name__ == "__main__":
     # asyncio.run(handler.mix([plate1.children[0]], mix_time=3, mix_vol=5, height_to_bottom=0.5, offsets=Coordinate(0, 0, 0), mix_rate=100))
     # print(plate1.children[0])
     # asyncio.run(handler.discard_tips())
-
-#     asyncio.run(handler.add_liquid(
-#     asp_vols=[10]*2,
-#     dis_vols=[10]*2,
-#     reagent_sources=[plate11.children[0]],
-#     targets=plate11.children[-2:],
-#     use_channels=[0],
-#     flow_rates=[None] * 4,
-#     offsets=[Coordinate(0, 0, 0)] * 4,
-#     liquid_height=[None] * 2,
-#     blow_out_air_volume=[None] * 2,
-#     delays=None,
-#     mix_time=3,
-#     mix_vol=5,
-#     spread="wide",
-# ))
+    print('1111'*500)
+    print(plate11.children[-2:])
+    asyncio.run(handler.add_liquid(
+    asp_vols=[10]*2,
+    dis_vols=[10]*2,
+    reagent_sources=[plate11.children[0]],
+    targets=plate11.children[-2:],
+    use_channels=[0],
+    flow_rates=[None] * 4,
+    offsets=[Coordinate(0, 0, 0)] * 4,
+    liquid_height=[None] * 2,
+    blow_out_air_volume=[None] * 2,
+    delays=None,
+    mix_time=3,
+    mix_vol=5,
+    spread="wide",
+))
 
 #     asyncio.run(handler.transfer_liquid(
 #     asp_vols=[10]*2,
@@ -1312,17 +1313,17 @@ if __name__ == "__main__":
 #     tip_racks=[plate8]
 # ))
 
-    asyncio.run(handler.remove_liquid(
-    vols=[10]*2,
-    sources=plate11.children[:2],
-    waste_liquid=plate11.children[43],
-    use_channels=[0],
-    offsets=[Coordinate(0, 0, 0)] * 4,
-    liquid_height=[None] * 2,
-    blow_out_air_volume=[None] * 2,
-    delays=None,
-    spread="wide"
-))
+#     asyncio.run(handler.remove_liquid(
+#     vols=[10]*2,
+#     sources=plate11.children[:2],
+#     waste_liquid=plate11.children[43],
+#     use_channels=[0],
+#     offsets=[Coordinate(0, 0, 0)] * 4,
+#     liquid_height=[None] * 2,
+#     blow_out_air_volume=[None] * 2,
+#     delays=None,
+#     spread="wide"
+# ))