mlisthenewcool
New Member
Materials
![73b6df453d8e40a3b541cb8622972627.jpg 73b6df453d8e40a3b541cb8622972627.jpg](http://quadcopterforum.com/data/attachments/5/5970-2570ee14098bf6eb1a3e2efc84ab8134.jpg)
I should be able to have a thurst of 642g per motor with my setup - and so 2568 for all motors. It's nearly a ratio of 2:1 from a thrust/weight perspective. So, theorically the setup is correct.
My experiments
Motors setup
1 ^ 2
4 3
motor 1 : CW rotation
motor 2 : CCW rotation
motor 3 : CW rotation
motor 4 : CCW rotation
^ : front
Photos of my setup to measure thrust/pwn
![16b0cbb2a0334cb3819394932948f3d8.jpg 16b0cbb2a0334cb3819394932948f3d8.jpg](http://quadcopterforum.com/data/attachments/5/5971-f3944bfee99d14ee2c0f352a9654a58f.jpg)
![d732c115a51048a69517964ff4285b77.jpg d732c115a51048a69517964ff4285b77.jpg](http://quadcopterforum.com/data/attachments/5/5972-93258e26f212d96e0379acc14aef3ad5.jpg)
If I have a 500g pull, shouldn't I be able to have a 500g push by changing 2 wires of my motor and changing of propeller ?
- Frame : Powerday, S500 Quadcopter Frame
- Motors : Readytosky, 2212, 920kv, DC 7-12V
- ESC : Readytosky, Cont. Current 30A, Max. Current 40A, 2-6S
- Propelers : Readytosky, 1045, 10" * 4"5
- Micro-controler : Arduino UNO
- Battery : Lipo, 11.1V 5000mAh, 60C, 3S
- ESC = 28.5g * 4 = 114g
- Motors = 53g * 4 = 212g
- Propellers = 10g * 4 = 40g
- Frame = 454g
- Battery = 383g
- Total = 114 + 212 + 40 + 454 + 383 = 1203g
- Total with wires, boards, sensors, 9V battery, screws, ... = 1306g
![73b6df453d8e40a3b541cb8622972627.jpg 73b6df453d8e40a3b541cb8622972627.jpg](http://quadcopterforum.com/data/attachments/5/5970-2570ee14098bf6eb1a3e2efc84ab8134.jpg)
I should be able to have a thurst of 642g per motor with my setup - and so 2568 for all motors. It's nearly a ratio of 2:1 from a thrust/weight perspective. So, theorically the setup is correct.
My experiments
Motors setup
1 ^ 2
4 3
motor 1 : CW rotation
motor 2 : CCW rotation
motor 3 : CW rotation
motor 4 : CCW rotation
^ : front
Photos of my setup to measure thrust/pwn
- CW propeller and 2 wires reversed so the motor is also rotating CW
![16b0cbb2a0334cb3819394932948f3d8.jpg 16b0cbb2a0334cb3819394932948f3d8.jpg](http://quadcopterforum.com/data/attachments/5/5971-f3944bfee99d14ee2c0f352a9654a58f.jpg)
- CCW propeller and no wire reversed so the motor is also rotating CCW
![d732c115a51048a69517964ff4285b77.jpg d732c115a51048a69517964ff4285b77.jpg](http://quadcopterforum.com/data/attachments/5/5972-93258e26f212d96e0379acc14aef3ad5.jpg)
- At 100% power, these setup generate around 500g of pull so the tared scale shows +500g.
- I've tried to switch 1 propeller and 1 motor in every configuration possible and my best measure is a push of 17g so the tared scale shows -17g.
If I have a 500g pull, shouldn't I be able to have a 500g push by changing 2 wires of my motor and changing of propeller ?