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
https://ummagawd.com/products/botgrin...

O3 Lite
https://flywoo.net/products/flywoo-na...

AIO
https://flywoo.net/products/goku-hd74...

Crossfire nano RX
https://www.racedayquads.com/products...

Crossfire Mini mortal antenna
https://www.team-blacksheep.com/produ...

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

HQ Props 3.5x2x3
https://www.racedayquads.com/products...

Batterystrap StanFPV Lightweight 150mm
https://stanfpv.com

3D prints
Adapters M3 to M2
https://www.thingiverse.com/thing:439...

Capacitor mount
https://www.thingiverse.com/thing:417...

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

Alternative Antenna mount that is free - but a little heavier
https://www.thingiverse.com/thing:612...

Titanium hardware M2 x 7mm bolts for props https://www.aliexpress.us/item/225580...