I'm a big fan and supporter of open source multirotors but this is just too impressive to pass. Too bad it is super expensive and out of reach for most hobbyists. Just wanted to share this with the community and see what they have to say about the the frame, gimbal and about DJI in general. 

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Comment by Emin Bu on May 30, 2012 at 1:42am

it would be realy nice if we find the way how to control this nice little motors http://www.maxonmotor.com/maxon/view/content/

Comment by Emin Bu on May 30, 2012 at 4:27am

Comment by John Arne Birkeland on May 30, 2012 at 3:00pm

Emin: This is totally off topic, but since you mentioned servocity.com.

I stopped using them <period> after I discovered that they patented the use of sprockets on servos. That is slapping the whole robotics community in the face, and a obvious applications for r/c servos that required to ingenuity at all.


Comment by Gokhan Demirci on August 23, 2012 at 2:26am



This can control dc stepper motors.There is schematic in download section for diy lovers.

Comment by Emin Bu on August 27, 2012 at 11:26pm


Comment by Luc Maximilien on September 3, 2012 at 11:13pm

A stepper motor is not smooth at all , it is quite heavy  and  generally it gives a lot of electric noise , so IMHO  it would not be a good choice for a gimball.

Comment by Ajienux on September 25, 2012 at 11:24am

BLDC direct drive gimbal http://www.youtube.com/watch?v=sv2IF7V-nv0  , by alexmos

Comment by Emin Bu on September 25, 2012 at 11:46pm

great stuff Alex,can you give us more details?and also would you like to sell me one of this?how much,it does not matter if its just experimental i like it a lot.....

Comment by Emin Bu on September 25, 2012 at 11:54pm

ok,i guess i will have to wait...i just read your russian blog....

Comment by Marooned on September 26, 2012 at 4:28am

I've read the thread on blog by alexmos and it looks like he is using regular brushless motor but there is no info what ESC is needed to control the motor in such way. Do you guys have some clue? On photos it looks like some regular ESC but it could be flashed with custom firmware. For sure stock esc/motor won't work as a minimal PWM causes motor to do few rounds and we need to hold it and do some "microsteps".


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