What did I learn from this flight test? As you can see in the video, the motors rotate,
but the propellers behave inappropriately. Instructor Kris and student
Solomon helped me
figure out what was wrong. There is free space between motors and propellers, so the propellers
are free to move. Oddly enough, neither motors and propellers sets had not flat screws nuts.
This could be due to the fact that there are too many options to offer one type of flat screw nuts.
In the laboratory I found suitable flat screws nuts and fastened them with a wrench.
TEST 2: [OUT]SIDE
In the second test, the motors rotated asynchronously and one motor did not rotate at all.
I calibrated the ESC. This time we also realized that all motors rotate in the direction of the CCW,
although two should rotate in the CW. And I spent a little more time with this revelation than expected.
When the two motors kits were purchased, the packaging was marked "1PCS CW / 1PCS CCW". What did I understand
from that? That by default the motor is designed to rotate in one direction or another. And after spending time
in the forum of technology enthusiasts, I realized - it does not mean! This means - in which direction the screw
should be screwed (so important information, ha ha). And I learned in the forum that a change of direction between
the ESC and the motor can occur if two of the three connecting wires are connected crosswise. For those motors that need to rotate in the CW direction, I unsoldered the
previous solder and did it as recommended.
TEST 3: [OUT]SIDE
All errors fixed - go to the next attempt! At first everything looked good, the sound is such that immediately, immediately .. will rise! But oh no, no matter how I try,
it doesn't rise but falls to the side. This is not due to a weight imbalance, but to the fact that I do not have the incompletely functionality of the accelerometer
and gyroscope module - the drone lacks stability.