Billy Bookcase half shelf bracket

This bracket lets you add a half depth shelf to your Ikea Billy Bookcase.It is measured and modeled to fit a standard billy bookcase shelf cut in half lengthwise.My son wanted more shelf real estate to display his models and collectibles but we didn't want a full depth shelf where things would get lost in the background. Instructions (Using one of the included shelves or by cutting an additional shelf which can be purchased separately from Ikea.):Cut the shelf lengthwise (from one side to the other NOT back to front)Print brackets and pinsGlue pin halves together using superglue (printing in halves, and in the orientation they are in the 3MF, and gluing together makes the pins much stronger)Place the brackets onto the ends of the half shelf and slide into bookcase.insert the pins into the mounting holes (the pins with the curved head go in the rear holes, flat head goes in the front)