Can I make a small drone frame achieve lift using 4 coreless 3.7 v motors of 55000 rpm, 3.7 v lipo batteries having 40c without a receiver and remote. Motors are all alike. The propellers I have are marked L and R.
Looks like it could rise up. But for some reason it flips over .
I am just trying the basics before I later use a receiver and remote.
Edited and added: Additional things I will try. I will try changing direction of the motors by changing the polarity. I think motor direction is more important than just the propeller L & R. The propellor L and R must be just something that can either reinforce or work against the benefits of Motor direction.
What I understand is if motors spin all in same direction they will cause the whole system to spin over. So what seems best is to have diagonally opposite corner motors rotate in same direction. Adjacent motors will need to rotate in opposite directions. This I understand is enough for a basic vertical lift.
Let me know. Meanwhile will try later today and update.
Updating: adjusting motor rotation direction helped a bit. It now lifts on one side while another side drags. It also flips and turns down inverted in one arrangement.
I learnt from some other urls now that the L propellor must go on the CW motor. The R propellor on the CCW motor. I will try that. Also I learnt now that the distance between rotors should be 1/3 of the rotor rotation diameter. Will work on that next weekend and see.
Post weekend effort: I think problem is with my home made frame. I think the motors are not straight. They are at some angles. Will improve my frame and see.
The other thing I learnt is just try playing with the position of the propellers. As usual diagonally opposite same direction of rotation. Don't assume propeller lettered side should be on top. Depends on manufacturer. Main thing is to keep hand above and below the propellers when all four motors are running and get an idea if it's pushing wind below and not up.
If anyone has any suggestions pls advice.