About this 3D model

I have need to mount a motor to a shelf without using any fasteners. This thing is a notched sleeve that will fit a nema 17 motor snugly. Of course there's an OpenScad file, so you can size it to whatever you want. It fits nicely with any 'keyed' item of the same size. I am using it with this keyed shelf UClip: http://www.thingiverse.com/thing:5968 It works out fairly well, and the friction fit can be enhanced by fasteners or glue if you really need that. I did just create another motor mount: http://www.thingiverse.com/thing:5940 but that's the more typical faceplate with screws, and screws to attach variety. This one is all about not needing any fasteners.