Very simple GPS/Smartphone cup holder car mount system. You print what you need and assemble it with nuts and bolts from any hardware store. The ball mount is design to fit the back of a Garmin GPS. ALL SOURCES AVAILABLE. Sketchup Models and STL.1) Look at the different parts 2) Print the Base and Base_up models 3) Select the parts you will need and print them up! 4) Assemble with screws (or inserts and M2 screw if you'd to be fancy) 5) Use it! ** I used ABS since my car tends to stay in the sun a lot. If you print this thing for a vehicle that is normally used in a very hot (or very cold) climate, please make sure you use the right material for your region to avoid a complete part meltdown :)