The gap-cap technique solves the challenge of embedding large or irregularly shaped hardware into 3D prints. By pausing a print, inserting the hardware, and placing a custom 3D-printed lid (the gap-cap) over it before resuming, makers get a clean flat surface for subsequent layers. This approach is especially useful for objects too large or oddly shaped for the standard method of simply printing over small embedded items like nuts or magnets. Optional glue or LEGO-style interlocking features can further secure the cap.
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