I’m trying to aspirate from the AGenBio_1_WP_Fl using the 96 head. This plate has only 1 well defined:
I get the following error
> await workcell.lh.aspirate96(workcell.cell_plate, 50)
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
Cell In[12], line 1
----> 1 await workcell.lh.aspirate96(workcell.reagent_reservoir, 50)
File ~/Documents/wetlab_workcell/src/pylabrobot/pylabrobot/liquid_handling/liquid_handler.py:1384, in LiquidHandler.aspirate96(self, resource, volume, offset, flow_rate, blow_out_air_volume, **backend_kwargs)
1381 raise ValueError("All wells must be in the same plate")
1383 if not len(wells) == 96:
-> 1384 raise ValueError(f"aspirate96 expects 96 wells, got {len(wells)}")
1386 for well, channel in zip(wells, self.head96.values()):
1387 # superfluous to have append in two places but the type checker is very angry and does not
1388 # understand that Optional[Liquid] (remove_liquid) is the same as None from the first case
1389 if well.tracker.is_disabled or not does_volume_tracking():
ValueError: aspirate96 expects 96 wells, got 1
*edit: Trying to hack around this by passing the same well 96 times works like so:
> await workcell.lh.aspirate96([workcell.reagent_reservoir.children[0]] * 96, 50)
However, in this case, I need to pass an offset that resolves the distance between the center of the single well and the center of a “virtual” A0 well in the top left corner:
offset = Coordinate(-workcell.cell_plate.children[0].get_size_x() / 2 + 4.5, workcell.cell_plate.children[0].get_size_y() / 2 - 4.5)
await workcell.lh.aspirate96([workcell.cell_plate.children[0]] * 96, 10, offset = offset)
This works.