About this 3D model
this case is meant to be as simple as possible, light, easy to use, and with features that could be usefull (drive see through and wire looping to reduce it's length) it should weigth ~34g of plastic and cost ~1€ of filament the shape of the stl files are meant to match this drive adapter plug : http://media.ldlc.com/ld3/zoom/2010/LD0000782104.jpg but you can try to adapt it to an other one, inside the model.zip there is solidworks files that you can edit every other informations are on the picture showing the usage guide