AstroX J5 frame JohnnyFPV antenna GPS Xiaomi Yi mount

thingiverse

<p> Hi friend. This is the mounts for the famous quadcopter frame.<br> These are tested and works well with my Aliexpress clone.<br> I flew at least 1 km away without too much video noise. I got around 13 satellites and the GPS rescue worked flawlessly every time. The required diameter of standoff for each mounts are noted in the file name.<br> The tall SMA protrusions are designed to contain the lengthy electrode of MMCX-SMA pigtail thus relieve strain and help wiring.<br> It also helps long-range flight with better RF performance than shorter one.<br> The GPS mount looks big but does not interfere with props even when crash.<br> BN-220 is self-locked in place without any adhesive once you install the connector. Diameter of the small antenna holes except SMA are 3 mm and they are intended to be used with 3mm-diameter protective plastic tubing. I tested 3mmD teflon tubing with success.<br> Now I just left them empty as I use a Crossfire Immortal T antenna instead.<br> I designed the antenna mounts in a way that you can pass-through your XT60 connector between the top-plate and the antenna mounts. It is easy to plug your battery.<br> I recommend you print the Yi mount at 103% scale because of shrinkage.<br> </p> <h1>Test conditions</h1> <h2>Common</h2> <ul> <li>Frame: Aliexpress clone of AstroX J5 frame</li> <li>Motor: T-motor F40 Pro II and III </li> <li>Prop: Gemfan 5146 tri-bladed prop</li> <li>VTX: AKK X2-ultimate 1200 mW </li> <li>VTX antenna: Aomway cloverleaf, TBS triumph </li> <li>nozzle temperature: 230C</li> <li>bed temperature: 65C</li> <li>scale: 100% (103% recommended for Yi mount)</li> <li>layer height 0.15 mm</li> <li>wall: 3</li> <li>infill: 20%</li> <li>bed adhesion: brim 2~3</li> <li>support: yes. 60 degrees will suffice.</li> </ul> <h2>Antenna GPS mounts</h2> <ul> <li>TPU black filament from Aliexpress</li> <li>Standoff diameter 5mm, 6mm</li> <li>Custom-made MMCX-SMA pigtail</li> <li>Beitian BN-220 GPS</li> </ul> <h2>Xiaomi Yi mounts</h2> <ul> <li>PLA filament from Cubicon</li> <li>M3x8 buttonhead screws</li> <li>15mm-width XBEE velcro strap, 12mm-width cheap wire organizer velcro strap from local hardware store</li> </ul>