Configuration_adv.h: Add FAN_MIN_PWM for slow fan stopping issue …

* all Configuration_adv.h: Add #define FAN_MIN_PWM for slow fan stopping
issue
* for K8200: uncommented with tested (and working) values

Marlin/Configuration_adv.h

@@ -94,6 +94,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/Felix/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/Hephestos/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/K8200/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+#define FAN_MIN_PWM 50 // K8200: fan stops running at about 35 to 40 (of 255)
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/SCARA/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/WITBOX/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/delta/biv2.5/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/delta/generic/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/makibox/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

@@ -102,6 +102,11 @@
 // before setting a PWM value. (Does not work with software PWM for fan on Sanguinololu)
 //#define FAN_KICKSTART_TIME 100
 
+// This defines the minimal speed for the main fan, run in PWM mode
+// to enable uncomment and set minimal PWM speed for reliable running (1-255)
+// if fan speed is [1 - (FAN_MIN_PWM-1)] it is set to FAN_MIN_PWM
+//#define FAN_MIN_PWM 50
+
 // @section extruder
 
 // Extruder cooling fans