Entries from October 2025

Using a Laser Pointer and 3D Printing to Align Electrical Conduit

As part of my ongoing garage renovation I installed new LED light fixtures on the ceiling. This required me to rebuild the existing network of surface-mounted conduits and brought to light some disturbing discoveries about the state of the electrical system in the garage I've lived next to, in blissful ignorance, since 2019. For more on that, watch the video above and learn how NOT to wire a garage with an extra circuit.

In addition to the downright hazardous faults I'm referring to was a class of problems that rise to the level of the merely annoying. One of those: the ceiling box that the lights depend on was rotated by a small but immediately apparent angle from the walls of the building. If, as planned, I installed the linear LED lamps using conduits connected to the box, the pattern of lights would not be perpendicular to anything else, which I obviously could not accept.

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