Great kit, therefore I needed about 2 1/2 hours. You should definitely pay close attention to the instructions and do not think that the gears are all the same, because there are several that I had to find. Had they then break down again and assemble properly. All in all a great kit I can definitely recommend. Oh me arm lifts loose more than 100g, my iPhone he raises (148g) and also more serious things. The software, however, is a bit inaccurate, he never goes back to its original position, but this is due to the engines, with servos that everything would be much more accurate. But is only a toy :)
