Google Pixel 2 (with Otterbox) Cup Holder Stand with Wireless Charging

thingiverse

I needed a sturdy support stand for my Pixel 2 phone, which had a protective case on it. The requirements were specific: the stand had to charge wirelessly, fit snugly into the factory cup holder, retain all functionality of the holder, and allow me to see the screen for navigation purposes while driving. I also wanted the stand to be easy to drop my phone into and have it naturally settle in the correct spot for charging. Additionally, I required that it be simple to remove the phone for a quick exit from the vehicle. While reaching the buttons or fingerprint sensor was not essential, I did want to maintain access to them. Since GPS navigation is the primary use case, I wouldn't recommend using your phone while driving. This led me to design a holder with a cup diameter of about 3 inches, which fits perfectly into my truck's cup holders. I purchased a small Qi wireless charging circuit from Amazon (link: https://www.amazon.com/gp/product/B07LGF992X/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1). Then, I unsoldered the coil, fed it through the hole in the holder, and glued the coil and circuit board (I used super glue), resoldering the wires afterwards. Things to watch out for: The circuit board is sensitive to static electricity, so handle it carefully. Make sure the back cover is securely in place. The board and coil are fragile, so handle them with care. Also, be gentle when handling the USB connector on the board, as it's also prone to damage. When attaching a bolt to the hinge holes, you may need to ream out the hole with a 1/4" drill bit for optimal use. Feel free to modify the cup design to fit your vehicle, just ensure that the hinge on your design is sufficient to mate with the holder. I used a simple 0.5" square with a centered 1/4" hole and rounded edges with a 1/4" radius for my design.