From 8dab6d1235e0f9dc23e718becf51b2a21fb8020c Mon Sep 17 00:00:00 2001
From: Parrish Payne <parrish.payne@opentrons.com>
Date: Thu, 21 Sep 2023 16:58:04 -0500
Subject: [PATCH] Fix if volume > 0, lower asp height for samples

---
 protocols/08207f/08207f.ot2.apiv2.py | 55 +++++++++++++++-------------
 1 file changed, 29 insertions(+), 26 deletions(-)

diff --git a/protocols/08207f/08207f.ot2.apiv2.py b/protocols/08207f/08207f.ot2.apiv2.py
index a6b441ad0..7c67f2e17 100644
--- a/protocols/08207f/08207f.ot2.apiv2.py
+++ b/protocols/08207f/08207f.ot2.apiv2.py
@@ -80,17 +80,18 @@ def slow_withdraw(pip, well, delay_seconds=2.0):
         dest_well = dest_plate.wells_by_name()[well]
         volume = float(row[7])
 
-        if volume > 20:
-            if not p300.has_tip:
-                p300.pick_up_tip()
-            p300.aspirate(volume, buffer.bottom(h_buff))
-            p300.dispense(volume, dest_well)
-
-        else:
-            if not p20.has_tip:
-                p20.pick_up_tip()
-            p20.aspirate(volume, buffer.bottom(h_buff))
-            p20.dispense(volume, dest_well)
+        if volume > 0:
+            if volume > 20:
+                if not p300.has_tip:
+                    p300.pick_up_tip()
+                p300.aspirate(volume, buffer.bottom(h_buff))
+                p300.dispense(volume, dest_well)
+
+            else:
+                if not p20.has_tip:
+                    p20.pick_up_tip()
+                p20.aspirate(volume, buffer.bottom(h_buff))
+                p20.dispense(volume, dest_well)
 
         adjust_height(volume)
 
@@ -108,19 +109,21 @@ def slow_withdraw(pip, well, delay_seconds=2.0):
 
         volume = float(row[6])
         mix_reps = 2
+        tip_height = 0.5
 
-        if volume > 20:
-            p300.pick_up_tip()
-            p300.aspirate(volume, source_well)
-            p300.dispense(volume, dest_well)
-            p300.mix(mix_reps, 20)
-            p300.blow_out()
-            p300.drop_tip()
-
-        else:
-            p20.pick_up_tip()
-            p20.aspirate(volume, source_well)
-            p20.dispense(volume, dest_well)
-            p20.mix(mix_reps, 10)
-            p20.blow_out()
-            p20.drop_tip()
+        if volume > 0:
+            if volume > 20:
+                p300.pick_up_tip()
+                p300.aspirate(volume, source_well.bottom(tip_height))
+                p300.dispense(volume, dest_well)
+                p300.mix(mix_reps, 20)
+                p300.blow_out()
+                p300.drop_tip()
+
+            else:
+                p20.pick_up_tip()
+                p20.aspirate(volume, source_well.bottom(tip_height))
+                p20.dispense(volume, dest_well)
+                p20.mix(mix_reps, 10)
+                p20.blow_out()
+                p20.drop_tip()