LEGO Brick-1X1-F-R-Q

thingiverse

This is a unique LEGO Brick 1X1, featuring a flat surface indicated by "F", meaning no other brick can be stacked on top of it. The round shape is denoted by "R" and the quarter-circle piece is marked as "Q". Its dimensions match those of the smaller model previously shared, with three small bricks equivalent to one large brick. Although similar to brick 6172366, this design does not require a white color. As customary, two versions are provided: an STL file and the original SketchUp design.