clarify, maybe

Author: thinkyhead

Marlin/Configuration.h

@@ -696,7 +696,8 @@
 #define PID_K1     0.95   // Smoothing factor within any PID loop
 
 #if ENABLED(PIDTEMP)
-  //#define MIN_POWER 0           // (0 to PID_MAX) For better PID stability, set to the value from M105 times 2 minus 10 to 20.
+  //#define MIN_POWER 0           // Min power to improve PID stability (0..PID_MAX).
+                                  // Get the power from the temperature report ('M105' => @:nnn) and try P*2-20 to P*2-10.
   //#define PID_DEBUG             // Print PID debug data to the serial port. Use 'M303 D' to toggle activation.
   //#define PID_PARAMS_PER_HOTEND // Use separate PID parameters for each extruder (useful for mismatched extruders)
                                   // Set/get with G-code: M301 E[extruder number, 0-2]
@@ -796,7 +797,8 @@
 //#define PIDTEMPBED
 
 #if ENABLED(PIDTEMPBED)
-  //#define MIN_BED_POWER 0   // (0 to MAX_BED_POWER) For better PID stability, set to the value from M105 times 2 minus 10 to 20.
+  //#define MIN_BED_POWER 0   // Min power to improve PID stability (0..MAX_BED_POWER).
+                              // Get the power from the temperature report ('M105' => B@:nnn) and try P*2-20 to P*2-10.
   //#define PID_BED_DEBUG     // Print Bed PID debug data to the serial port.
 
   // 120V 250W silicone heater into 4mm borosilicate (MendelMax 1.5+)
@@ -878,7 +880,8 @@
 #define MAX_CHAMBER_POWER 255 // limits duty cycle to chamber heater; 255=full current
 
 #if ENABLED(PIDTEMPCHAMBER)
-  #define MIN_CHAMBER_POWER 0 // (0 to MAX_BED_POWER) For better PID stability, set to the value from M105 times 2 minus 10 to 20.
+  #define MIN_CHAMBER_POWER 0 // Min power to improve PID stability. (0..MAX_CHAMBER_POWER)
+                              // Get the power from the temperature report ('M105' => C@:nnn) and try P*2-20 to P*2-10.
   //#define PID_CHAMBER_DEBUG // Print Chamber PID debug data to the serial port.
 
   // Lasko "MyHeat Personal Heater" (200w) modified with a Fotek SSR-10DA to control only the heating element