AstroX J5 frame JohnnyFPV antenna GPS Xiaomi Yi mount

Last crawled date: 4 years, 3 months ago

Hi friend.
This is the mounts for the famous quadcopter frame.
These are tested and works well with my Aliexpress clone.
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.
The tall SMA protrusions are designed to contain the lengthy electrode of MMCX-SMA pigtail thus relieve strain and help wiring.
It also helps long-range flight with better RF performance than shorter one.
The GPS mount looks big but does not interfere with props even when crash.
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.
Now I just left them empty as I use a Crossfire Immortal T antenna instead.
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.
I recommend you print the Yi mount at 103% scale because of shrinkage.
Test conditions
Common
Frame: Aliexpress clone of AstroX J5 frame
Motor: T-motor F40 Pro II and III
Prop: Gemfan 5146 tri-bladed prop
VTX: AKK X2-ultimate 1200 mW
VTX antenna: Aomway cloverleaf, TBS triumph
nozzle temperature: 230C
bed temperature: 65C
scale: 100% (103% recommended for Yi mount)
layer height 0.15 mm
wall: 3
infill: 20%
bed adhesion: brim 2~3
support: yes. 60 degrees will suffice.
Antenna GPS mounts
TPU black filament from Aliexpress
Standoff diameter 5mm, 6mm
Custom-made MMCX-SMA pigtail
Beitian BN-220 GPS
Xiaomi Yi mounts
PLA filament from Cubicon
M3x8 buttonhead screws
15mm-width XBEE velcro strap, 12mm-width cheap wire organizer velcro strap from local hardware store