This model was designed in my recent youtube video on Bitner Built for the Wood Vs 3D Print series. There is a french cleat and wall mounted version of the file. the two end can be used together or addin 1 or more of the center prints. once attached just add a dab of glue. THere is a support file for the back to add regidity however since the holder is thick its mostly not needed. I origionally designed this thinner to conserve filament however it needs the thicker structure to keep the tools upright. if you want to watch the video on this design its at