Anyone tried the PID Autotune?
I followed the guide from
hereI've only tried the nozzle.
I ran it 3 times with it getting it's result from 25 passes and a further 3 times with it getting its results from 5 passes, all at 215 degrees, all with side fan on.
Results from 25 pass test
1)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 20.47
Recv: #define DEFAULT_Ki 1.63
Recv: #define DEFAULT_Kd 64.42
2)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 19.14
Recv: #define DEFAULT_Ki 1.51
Recv: #define DEFAULT_Kd 60.61
3)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 21.52
Recv: #define DEFAULT_Ki 1.75
Recv: #define DEFAULT_Kd 65.99
Results from 5 pass tests
1)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 22.52
Recv: #define DEFAULT_Ki 1.87
Recv: #define DEFAULT_Kd 67.70
2)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 25.87
Recv: #define DEFAULT_Ki 2.18
Recv: #define DEFAULT_Kd 76.73
3)
PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define DEFAULT_Kp 21.59
Recv: #define DEFAULT_Ki 1.74
Recv: #define DEFAULT_Kd 67.09
So the values between the 6 tests vary from
P: 19.14 - 25.87
I: 1.51 - 2.18
D: 60.61 - 76.73
I expected a slight variation, but this seems like autotune isn't really worth it at all, or something in my machine isn't working?