check if speed exists

Opentrons · Jul 21, 2023 · 0a0ed2b · 0a0ed2b
1 parent ba291d5
commit 0a0ed2b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hardware-testing/hardware_testing/opentrons_api/helpers_ot3.py b/hardware-testing/hardware_testing/opentrons_api/helpers_ot3.py
@@ -452,7 +452,7 @@ async def move_tip_motor_relative_ot3(
  current_gear_pos_dict = {Axis.Q: current_gear_pos_float}
  target_pos_dict = {Axis.Q: current_gear_pos_float + distance}
 
- if distance < 0:
+ if speed is not None and distance < 0:
  speed *= -1
 
  tip_motor_move = api._build_moves(current_gear_pos_dict, target_pos_dict, speed)