Marlin Bed Temperature Overshoot

Data

• SSR - 5 hz max reliable switching frequency. [1]. 0.5 hz recommended for heating.
• Overshoot is 10-30C on the bed. D3D_v20.04.27_Data_Collection#Hysteresis_of_Bed

Code

M303 S50 E-1 C5 - 5 passes, set for 50C, -1 for bed

Procedure

PID Autotune - [2]

Results

Using Lulzbot Cura, M303 with no parameters heats the extruder to about 150:

And produces optimal values of P, I, D

M503 displays current values:

< M503

...

< echo:PID settings:

< echo: M301 P22.20 I1.08 D114.00

You can save the values from PID Autotune by going into configuration.h

Links

• Marlin - PID autotune - [3]