A lot of people in the MikroKopter-Forum think, that it is difficult to change the FETs of the BL-Ctrl. But that isn’t so. All you need is a soldering iron with enough power. You can even use a “really brutal” 230V device without any regulation. Then you have to heat up the FET and remove it from the PCB.
To solder a new FET to the PCB, do the same in the other direction. Really simple – see my short movie:
Some of you already thought, that i stopped my work with the MikroKopter. But that is not the case.
During the last weeks i build up a second (new/old) MikroKopter with my 1.0 FlightCtrl. Also the “old” handmade 1.0 BL-Ctrl got an update with the Vishay FETs (P-Channel: SUD50P04-09L and N-Channel: SUD50N06-09L). The BL-Ctrl 1.0 was updated to a BL-Ctrl 1.1 – that only needed a small hardware change (the address coding). This can be seen in detail on the following picture:
The technical data of the “very-low-cost, very-low-weight and much fun to play with – MikroKopter”:
Axis centre distance: 40 cm
Standard Alu-Frame with Centerplates
FlightCtrl 1.0 (not modified to 1.1 yet – but not really necessary)
BL-Ctrl 1.0 PCB with modified hardware, so that hardware adressing is possible like BL-Ctrl 1.1
“Schwimmnudel” PE landing pads (really low cost and low weight)
E-Sky motors – out of the MK-Shop (they are much louder than the Roxxy, but also much cheaper and for the first (or in my case the second) MikroKopter completely ok.
LEDs to be able to fly in the night/evening. (got from my Company, where I’m currently working: http://www.tridonicatco.com/ LED P510/511) They can be directly driven by the LiPo (11.7 Volts)
Standard 3S1P Lipo
ACT receiver (also out of the MikroKopter Shop)
And now some additional pictures of my second “Training-Kopter” with LEDs :
Also i received a new Video-Transmitter from Hong-Kong. But more details later…
Januar 29th, 2008 by 
Speedy
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