The Hard Light Bridge Factory is a factory in Portal 2 where Hard Light Bridges are put to test for its quality and strength against a concrete wall before they can be put to testing. It is located within the Aperture Science Enrichment Center outside the official test chambers and is only visited by Atlas and P-body in the last level of Course 3 of the co-op campaign. In the factory, each Hard Light Bridge emitters are attached to a support beam in a lineup, as the quality and strength of the surface is tested against a concrete wall. Once a bridge completes testing, it automatically deactivates and moves upwards, the next emitter in line then moves up to the concrete wall and activates itself to test. In certain areas of the factory, a switch is placed on a catwalk to stop the nearest Hard Light Bridge to the concrete wall for quality monitoring.
| Hard Light Bridge Factory |
| | A Hard Light Bridge stopped for quality monitoring in Area 3
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| | A Hard Light Bridge stopped for quality monitoring in Area 5
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- Turrets, like Hard Light Bridges, also need to pass through quality monitoring before they can be put to testing.
