The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • SJCam M50 Condensation

    I put the camera in the front yard to monitor a new groundhog hole, then mowed the lawn. Although smoke drifting in from the Canadian fires has posed a problem, the air quality wasn’t this bad:

    SJCam M50 camera condensation - foggy image
    SJCam M50 camera condensation – foggy image

    It turns out the camera’s case seal isn’t quite up to the task:

    SJCam M50 camera condensation - detail
    SJCam M50 camera condensation – detail

    The lip around the front half of the case presses against a rubber gasket around the rear half, which means the water on the electronics chassis is inside the camera case:

    SJCam M50 camera condensation - case edge
    SJCam M50 camera condensation – case edge

    Fortunately, the water condensed on the inside of the glass lens protector, rather than on the camera itself:

    SJCam M50 camera condensation - interior
    SJCam M50 camera condensation – interior

    I let the whole thing dry out on the bench for a few days and all seems right again.

    The leak does make me think leaving it out in the rain is a Bad Idea™, which isn’t the sort of thought one should have about a trail camera.

    Diurnal pumping can explain many electronic failures. For the record, the monitoring station on the Walkway Over the Hudson vanished a while ago, probably due to rampant electronic corrosion.