//continue
What the rotor heads look like:
The curved mixing arms fix non-linearity of angled grip arms.
July 21, 2016
Made an upgraded version of bevel gears: “Zerol Bevel Gears” with metal bushing
August 28, 2016
“The Grand Assembly”
September 4, 2016
The landing skids (legs) no photo available
Til this date, I still had no idea what flight controller I could use
September 19, 2016
Joined discuss.ardupilot.org 
See my discussion here: Synchropter build need help
December 1, 2016
December 24, 2016
First Lift Off
Video nowhere to be found
January 24, 2017
Telemetry set
May 6, 2017
Testing Here GPS
By mounting GPS on top in Cube’s former place, Cube got moved below the frame.
This was when the magic happened
Vibration level halved
May 8, 2017
Decided to make new lower frame that allow Cube to be mounted inside.
Final Design
May 17, 2017
Start working
May 23, 2017
May 31, 2017
“I wanna mount a camera”
June 29, 2017
First Loiter
July 24, 2017
To be continued