maker select v2 tool holder

I created this based off of two designs Monoprice Maker Select Plus, Wanhao Duplicator i3 Tool holder and Ultimate Modular 3D Printer Tool Holder Rack and blended them together. I also added a rail to the back so more tools can be added to it. only supports that is needed is for the rail in which I used custom supports from cura. because I installed the Z Extensions for Wanhao Duplicator i3, Cocoon Create, and Maker Select i needed something that would attach to my printer so I created this.