Apply fixed EXTRUDER_RUNOUT_PREVENT

8 years ago · 9b0931ef74
parent b1a60e8954
commit 9b0931ef74
19 changed files with 170 additions and 135 deletions
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@ -8608,11 +8608,11 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) {
  #if ENABLED(EXTRUDER_RUNOUT_PREVENT)
    if (ELAPSED(ms, previous_cmd_ms + (EXTRUDER_RUNOUT_SECONDS) * 1000UL)
      && thermalManager.degHotend(active_extruder) > EXTRUDER_RUNOUT_MINTEMP) {
+      bool oldstatus;
      #if ENABLED(SWITCHING_EXTRUDER)
-        bool oldstatus = E0_ENABLE_READ;
+        oldstatus = E0_ENABLE_READ;
        enable_e0();
      #else // !SWITCHING_EXTRUDER
-        bool oldstatus;
        switch (active_extruder) {
          case 0:
            oldstatus = E0_ENABLE_READ;
@ -8639,15 +8639,14 @@ void manage_inactivity(bool ignore_stepper_queue/*=false*/) {
        }
      #endif // !SWITCHING_EXTRUDER

-      float oldepos = current_position[E_AXIS], oldedes = destination[E_AXIS];
-      planner.buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS],
-                       destination[E_AXIS] + (EXTRUDER_RUNOUT_EXTRUDE) * (EXTRUDER_RUNOUT_ESTEPS) * planner.steps_to_mm[E_AXIS],
-                       MMM_TO_MMS(EXTRUDER_RUNOUT_SPEED) * (EXTRUDER_RUNOUT_ESTEPS) * planner.steps_to_mm[E_AXIS], active_extruder);
-      current_position[E_AXIS] = oldepos;
-      destination[E_AXIS] = oldedes;
-      planner.set_e_position_mm(oldepos);
      previous_cmd_ms = ms; // refresh_cmd_timeout()
+      planner.buffer_line(
+        current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS],
+        current_position[E_AXIS] + EXTRUDER_RUNOUT_EXTRUDE,
+        MMM_TO_MMS(EXTRUDER_RUNOUT_SPEED), active_extruder
+      );
      stepper.synchronize();
+      planner.set_e_position_mm(current_position[E_AXIS]);
      #if ENABLED(SWITCHING_EXTRUDER)
        E0_ENABLE_WRITE(oldstatus);
      #else
--- a/Marlin/example_configurations/Cartesio/Configuration_adv.h
+++ b/Marlin/example_configurations/Cartesio/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/Felix/Configuration_adv.h
+++ b/Marlin/example_configurations/Felix/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/Hephestos/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/K8200/Configuration_adv.h
+++ b/Marlin/example_configurations/K8200/Configuration_adv.h
@ -174,14 +174,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/K8400/Configuration_adv.h
+++ b/Marlin/example_configurations/K8400/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/RigidBot/Configuration_adv.h
+++ b/Marlin/example_configurations/RigidBot/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/SCARA/Configuration_adv.h
+++ b/Marlin/example_configurations/SCARA/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 180
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 180   // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 180  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5  // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/TAZ4/Configuration_adv.h
+++ b/Marlin/example_configurations/TAZ4/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/WITBOX/Configuration_adv.h
+++ b/Marlin/example_configurations/WITBOX/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/delta/generic/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/generic/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h
@ -173,14 +173,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/makibox/Configuration_adv.h
+++ b/Marlin/example_configurations/makibox/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature

--- a/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h
@ -168,14 +168,16 @@

 // @section extruder

-//  extruder run-out prevention.
-//if the machine is idle, and the temperature over MINTEMP, every couple of SECONDS some filament is extruded
+// Extruder runout prevention.
+// If the machine is idle and the temperature over MINTEMP
+// then extrude some filament every couple of SECONDS.
 //#define EXTRUDER_RUNOUT_PREVENT
-#define EXTRUDER_RUNOUT_MINTEMP 190
-#define EXTRUDER_RUNOUT_SECONDS 30
-#define EXTRUDER_RUNOUT_ESTEPS 14   // mm filament
-#define EXTRUDER_RUNOUT_SPEED 1500  // extrusion speed
-#define EXTRUDER_RUNOUT_EXTRUDE 100
+#if ENABLED(EXTRUDER_RUNOUT_PREVENT)
+  #define EXTRUDER_RUNOUT_MINTEMP 190
+  #define EXTRUDER_RUNOUT_SECONDS 30
+  #define EXTRUDER_RUNOUT_SPEED 1500  // mm/m
+  #define EXTRUDER_RUNOUT_EXTRUDE 5   // mm
+#endif

 // @section temperature