300mm quad rebuild into 280mm quad

The quad I build last weekend didn’t work out. All the junky Hobbyking motor mounts broke in one flight. I had to make new arms and moved components around so everything fits better. Here it is rebuilt with the 6×3 props:  

New 300mm mini-H quad is born!

Built this this weekend. This thing is a beast, flys great with a ton of power! DIY carbon fiber frame, 12mm arms. HK-GT550 plates. Silicone vibration isolation, Tarot 10mm donuts Flytron 433Mhz LRS PPM APM 2.6 w/Ublox HMC5983 high precision magnetometer 3DR power module 20A Qbrain ESC w/ heatsink removed max draw 10A (lighter than…

Just built a new giant heavy lift Quadcopter

This beautiful beast just got put together this weekend. Features long range radio that can go miles, long run-time depending on what battery is used, water resistant, live two way telemetry, APM Arducopter autopilot. Heavy lifting too! Would be great for farming surveys or filming. Flies really smooth with no vibration. All up weight without…

Overview: Autopilots and OSD’s for planes and quadcopters

The Autopilot system includes the IMU (compass), GPS, airspeed sensor, temperature and barometer sensors as well as other sensors.  The radio receiver’s signals are routed to the autopilot where sensor considerations are made and then data is outputted to the servos and speed controllers.  It is responsible for the full automation of the whole system…

GPS trackers, quickly recover that lost drone

Backup GPS tracker – These are usually used for tracking pet dogs, vehicles or cheating spouses. They send location over cellular networks and some use GMRS/FRS. Here is one that lightweight (1.8oz) that uses cellular to email its position to you, includes 1yr of cell service and then its $50 each year after: Garmin GTU…