Customizable USB/SD card holder with tray

This is a customizable USB/SD card holder, written in Open SCad. The values you need to define are: $card_nr=6; - how many SD card slots you want $usb_nr=6; - how many USB slots you want $tray_width=30; - the width of the tray in millimeters In the Scad file you will find more descriptions. There are a lot of USB holders out there...this is just my take on it :) Feel free to edit the code on your liking.