I built a Sub250g freestyle FPV drone // Grinderino with DJI O3

My latest FPV build was a Botgrinder Grinderino on 6s with a DJI O3… here’s how I made it Sub250g

My first flight didn’t go as planned though…

Links to the parts - None of these are affiliate links

Grinderino frame
ummagawd.com/products/botgrinder-grinderino-3-5-fr…

O3 Lite
flywoo.net/products/flywoo-naked-o3-lite-ultra-air…

AIO
flywoo.net/products/goku-hd745-evo-40a-aio-bl_32-d…

Crossfire nano RX
www.racedayquads.com/products/crossfire-nano-se?ke…

Crossfire Mini mortal antenna
www.team-blacksheep.com/products/prod:minimortal_t…

Motors
T-motor Pacer 1804 2400kv (1.5mm shaft)
shop.tmotor.com/products/p1804

HQ Props 3.5x2x3
www.racedayquads.com/products/hq-prop-t3-5x2x3-tri…

Batterystrap StanFPV Lightweight 150mm
stanfpv.com/

3D prints
Adapters M3 to M2
www.thingiverse.com/thing:4397586

Capacitor mount
www.thingiverse.com/thing:4170547

Antenna mount DJI + CRSF Minimortal/ ELRS mount - this is one I've used but unfortunately there's a small charge for downloading this model
cults3d.com/en/3d-model/various/grinderino-dji-o3-…

Alternative Antenna mount that is free - but a little heavier
www.thingiverse.com/thing:6124744

Titanium hardware M2 x 7mm bolts for props www.aliexpress.us/item/2255800186968436.html