"Open grid" 1x4 benchwork is a standard technique for building the structural frame of a model railroad.
These grids provide precise light control by narrowing the beam angle (typically 40 degrees) and reducing light spill. Grid 1x4
: Custom 3D-printed 1x4 grids are used to organize small collectibles like LEGO figurines or 1:64 scale miniature cars inside standard IKEA frames. "Open grid" 1x4 benchwork is a standard technique