Firmware2/README.md

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2011-11-20 09:03:42 +01:00
WARNING:
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2012-09-13 04:52:16 +02:00
This is an experimental modification to allow PID on your bed heater.
2012-02-08 18:28:54 +01:00
2012-09-13 04:52:16 +02:00
This will run at the same frequency as the main PID loop. Make sure you heater FET or SSR can do this. I use a fotek SSR-10DA and it's fine
2012-09-13 04:52:16 +02:00
add something like this to you configuration (pulling this branch will get you this
2012-03-18 15:59:14 +01:00
2012-09-13 04:52:16 +02:00
~~~~~~~~~~~~~~~~~~~~
#define PIDTEMPBED
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//from FOPDT model - kp=.39 Tp=405 Tdead=66, Tc set to 79.2, argressive factor of .15 (vs .1, 1, 10)
#define DEFAULT_bedKp 10.00
#define DEFAULT_bedKi .023
#define DEFAULT_bedKd 305.4
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2012-09-13 04:52:16 +02:00
Autotune works for the bed. Give it an "M303 E-1 C8 S90" to run autotune on the bed at 90 degrees for 8 cycles.