(pictures without 240mAh battery)
First impression flying this: ‘…silence…’
Second impression (immediatly): ‘Stop it! It’s going up!’
Third: ‘Motors off & catch it!’
Yeah. Seems like a kind of dissapointment that the Hubsan-controller can’t handle the motors at lower levels. Or the firmware quits. To loose hight you have to set the power to almost zero. If you got zero your copter will fall and only level if you turn the motors back on. But then it gains hight again and it repeats. This thing is almost uncontrollable. Haven’t changed motors (around 90min old, one new) or propellers jet.
The frame was made with SchorschXY, scliced by Cura and meshed/modeled in Rhino4. Cura says 2.93 gram (incl. 1 skirt or ~0.03g)