This is a parametric shelf bracket. The screw holders are printed separately to prevent the brackets from splitting if the screws are overtightened. The example provided is designed for #8 wood screws, 1.5 inches in length, and a shelf depth of 5.5 inches. 

Support material touching the build plate is required. An infill of 30% is recommended. 

This object's main web page is: [https://www.ctheroux.com/parametric-shelf-bracket/.](https://www.ctheroux.com/parametric-shelf-bracket/.) 

This object was designed using openSCAD.