Tiny Drawer for Shaper Origin Systainer Handle

I got tired of opening the systainer box to retreive the usb flashdrive from the Origin.

I made a tiny drawer that fits into the hollow handle of the systainer box. 

Now when I download a model, I don't have to drag out the systainer. I pull it out of the handle.

I used PLA and 0.2 layer height. To get a clean surface print, I printed face down and with supports everywhere.