aircraft phone holder

thingiverse

A cellphone wireless charger mount designed for installation in a standard 3 1/8 inch aircraft instrument panel cutout. This design revolves around the wireless cellphone charger https://www.aliexpress.com/item/Proelio-Wireless-Car-Charger-Phone-Holder-for-iPhone-8-X-for-Samsung-Galaxy-S6-S7-S8/32844712249.html and the USB power supply https://www.aliexpress.com/item/9V-12V-24V-to-5V-DC-DC-Step-Down-Charger-Power-Module-Dual-USB-Output-Buck/32847583351.html. Other wireless chargers will work without modification as long as they have a 17mm ball/socket attachment. Note: The USB charger may cause radio interference, so it's recommended to look for an alternative and redesign the Thing accordingly. This mount is not suitable for use with this specific USB charger. This design requires a heatsink on the large chip if you draw more than 2A. The charger draws about 1.5A, so you will need a heatsink if you plan to use both sockets at the same time. Heatsinks are attached by self-adhesive pads, but it's recommended to tie the heatsink to the PCB using braided copper wire for added security. To assemble this mount, you'll need 4x M4x20 screws, 4 x M4 nuts, 2 x 2x8mm self-tapping screws, some wire, a connector, and a short USB-to-micro-USB cable. Solder wires to the pads on the USB board, and secure them with cable ties for strain relief. Connect to a fused, master-controlled 12V supply (e.g. the back of the cigarette lighter socket). Mount the USB board to the phone holder using self-tapping screws. Put M4 nuts in the recesses in the back of the holder, securing them with hot glue if necessary. Mount the holder in the panel (V1 could be done through the hole in the panel itself, if access to the back is difficult) using M4 screws. Unscrew the plastic nut that holds the air-vent or other attachment to the back of the phone holder. The attachment ball part should then pull out of the socket. Keep the nut and place it over the ball on the panel. Push the socket onto the ball, and tighten the nut. Plug in the micro-USB cable. V1 has the USB at right angles to the panel face, and is in two parts to facilitate printing the USB board mount. V2 is a single-piece design with the USB board at 45 degrees. If you're modding, consider moving the ball position off-centre to adjust the phone's height or angle. The USB board was positioned to the right of the holder to allow for easy access when plugging in a second phone.