About this 3D model

I thought id put my arduino and ramps in a box with the fan on the drivers. I didn't want the box fully closed to help with circulation, as I don't have a lcd shield yet but will soon I left enough space too plug the shield in there's no hole for the the sd card but open the free-cad model in free-cad and add it yourself as i made this purpose for my needs and uploading it to share i only use free-cad which i find easier than openscad on positioning of objects hence why they either stl or free-cad format the fan mount holes i was going to tap into them m4 thread the arduino mount holes i was going to tap a m3 thread I put lugs on the back end for mounting through the arduino as its hard to get screw heads past the components