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Add short OpenTrons 24-well tuberack definition #890

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Add short OpenTrons 24-well tuberack definition #890

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e132945
add OT2 rack and TubeRackAdapter
har1eyk Jul 19, 2025
316b36b
Accepted incoming and current to prevent conflicts
har1eyk Oct 16, 2025
cba4670
modify dx, dy measurements
har1eyk Sep 2, 2025
5a43928
removed duplicate import statements
har1eyk Oct 16, 2025
2ff3a08
Delete function calls in HK version
har1eyk Oct 17, 2025
25cdefb
Add update to docs resources
har1eyk Feb 13, 2026
63a3c18
fix linting: remove cast
har1eyk Feb 13, 2026
ff1e074
Refactor tube rack implementation: update well dimensions and remove …
har1eyk Feb 13, 2026
a98f702
lint formatting
har1eyk Feb 13, 2026
765b2b3
clean:remove testing comments
har1eyk Feb 16, 2026
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Binary file added docs/resources/library/img/opentrons/ot2-1.5mL-tube-rack-24w.png
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5 changes: 5 additions & 0 deletions docs/resources/library/opentrons.md
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,11 @@ Unfortunately, most of the other labware (plates) is missing information that is
- `opentrons_24_tuberack_nest_0_5ml_screwcap`
- `opentrons_24_tuberack_nest_1_5ml_screwcap`
- `opentrons_24_tuberack_nest_1_5ml_snapcap`

| Description | Image | PLR definition |
|-|-|-|
| 'opentrons_24_tuberack_generic_1point5ml_snapcap_short'<br>Part no.: 3405002<br>[manufacturer website](hhttps://www.thingiverse.com/thing:3405002) | ![](img/opentrons/ot2-1.5mL-tube-rack-24w.png) | `opentrons_24_tuberack_generic_1point5ml_snapcap_short` |

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@rickwierenga rickwierenga Feb 14, 2026

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is this something you designed or OT? that will dictate where in the docs/ code this resource should go

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@har1eyk har1eyk Feb 16, 2026

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The “30 mm shorter” base stand appears to be a community 3D-printed modification. It is not a OT product offering.

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@rickwierenga rickwierenga Feb 16, 2026

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in that case I think we should document it and put the place in diy rather than under opentrons?

- `opentrons_24_tuberack_nest_2ml_screwcap`
- `opentrons_24_tuberack_nest_2ml_snapcap`
- `opentrons_6_tuberack_falcon_50ml_conical`
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36 changes: 36 additions & 0 deletions pylabrobot/resources/opentrons/tube_racks.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,41 @@
from pylabrobot.resources.opentrons.load import load_ot_tube_rack
from pylabrobot.resources.resource_holder import ResourceHolder
from pylabrobot.resources.tube_rack import TubeRack
from pylabrobot.resources.utils import create_ordered_items_2d


def opentrons_24_tuberack_generic_1point5ml_snapcap_short(name: str) -> TubeRack:
"""
OpenTrons 24 well rack with the shorter stand; 30mm shorter than default stand.
3D print available here: https://www.thingiverse.com/thing:3405002
Spec sheet (json):
https://raw.githubusercontent.com/Opentrons/opentrons/edge/shared-data/labware/definitions/2/opentrons_24_tuberack_nest_1.5ml_screwcap/1.json
"""

WELL_DIAMETER = 9.2 # measured (circular -> inscribed square sizing is used elsewhere; see below)
WELL_DEPTH = 37.40 # measured
well_size_x = well_size_y = WELL_DIAMETER

return TubeRack(
name=name,
size_x=127.75, # spec
size_y=85.50, # spec
size_z=48.5, # measured (short stand)
model=opentrons_24_tuberack_generic_1point5ml_snapcap_short.__name__,
ordered_items=create_ordered_items_2d(
ResourceHolder,
num_items_x=6,
num_items_y=4,
dx=13.5, # measured
dy=13.5, # measured
dz=12, # measured
item_dx=19.89, # spec
item_dy=19.28, # spec
size_x=well_size_x,
size_y=well_size_y,
size_z=WELL_DEPTH,
),
)


def opentrons_10_tuberack_falcon_4x50ml_6x15ml_conical(name: str) -> TubeRack:
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