Add volumetric extrusion limit (#17017)

Marlin/src/inc/Conditionals_post.h

@@ -260,6 +260,13 @@
   #define MAX_AUTORETRACT 99
 #endif
 
+/**
+ * Provide a DEFAULT_VOLUMETRIC_EXTRUDER_LIMIT in case NO_VOLUMETRICS is enabled
+ */
+#ifndef DEFAULT_VOLUMETRIC_EXTRUDER_LIMIT
+  #define DEFAULT_VOLUMETRIC_EXTRUDER_LIMIT 0.00
+#endif
+
 /**
  * LCD Contrast for Graphical Displays
  */

Marlin/src/inc/SanityCheck.h

@@ -1479,6 +1479,17 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
   #endif
 #endif
 
+/**
+ * Volumetric Extruder Limit
+ */
+#if ENABLED(VOLUMETRIC_EXTRUDER_LIMIT)
+  #if ENABLED(NO_VOLUMETRICS)
+    #error "VOLUMETRIC_EXTRUDER_LIMIT requires NO_VOLUMETRICS to be disabled."
+  #elif MIN_STEPS_PER_SEGMENT > 1
+    #error "VOLUMETRIC_EXTRUDER_LIMIT is not compatible with MIN_STEPS_PER_SEGMENT greater than 1."
+  #endif
+#endif
+
 /**
  * ULTIPANEL encoder
  */