Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!
For the AT&T Mifi (wifi system), untested, and not printed yet as it's still a work in progress.
Should hold you Mifi system in place , attach some double sided mounting tape, preferably the outdoors one, since it's thinner, to the bottom of the holder. You can also replace the double sided tape with All Weather Fasteners (also known as Velcro). To be attached to your car/suv/van dashboard or any flat surface, intended to hold in place so it doesn't slide around....