MPC improvements

MarlinFirmware/Marlin#24253
MarlinFirmware · May 28, 2022 · 7a0be3e · 7a0be3e
1 parent 40f3bbc
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Showing 308 changed files with 924 additions and 924 deletions.
diff --git a/config/default/Configuration.h b/config/default/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/3DFabXYZ/Migbot/Configuration.h b/config/examples/3DFabXYZ/Migbot/Configuration.h
@@ -692,15 +692,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/ADIMLab/Gantry v1/Configuration.h b/config/examples/ADIMLab/Gantry v1/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/ADIMLab/Gantry v2/Configuration.h b/config/examples/ADIMLab/Gantry v2/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Alfawise/U20-bltouch/Configuration.h b/config/examples/Alfawise/U20-bltouch/Configuration.h
@@ -749,15 +749,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Alfawise/U20/Configuration.h b/config/examples/Alfawise/U20/Configuration.h
@@ -749,15 +749,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/AliExpress/CL-260/Configuration.h b/config/examples/AliExpress/CL-260/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/AliExpress/UM2pExt/Configuration.h b/config/examples/AliExpress/UM2pExt/Configuration.h
@@ -691,15 +691,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A2/Configuration.h b/config/examples/Anet/A2/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A2plus/Configuration.h b/config/examples/Anet/A2plus/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A6/Configuration.h b/config/examples/Anet/A6/Configuration.h
@@ -691,15 +691,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A8/Configuration.h b/config/examples/Anet/A8/Configuration.h
@@ -693,15 +693,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A8plus/Configuration.h b/config/examples/Anet/A8plus/Configuration.h
@@ -693,15 +693,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/A9/Configuration.h b/config/examples/Anet/A9/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif
 

diff --git a/config/examples/Anet/E10/Configuration.h b/config/examples/Anet/E10/Configuration.h
@@ -690,15 +690,15 @@
     //#define MPC_FAN_0_ACTIVE_HOTEND
   #endif
 
-  #define FILAMENT_HEAT_CAPACITY_PERMM 5.6e-3f        // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
-  //#define FILAMENT_HEAT_CAPACITY_PERMM 3.6e-3f      // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
+  #define FILAMENT_HEAT_CAPACITY_PERMM { 5.6e-3f }    // 0.0056 J/K/mm for 1.75mm PLA (0.0149 J/K/mm for 2.85mm PLA).
+  //#define FILAMENT_HEAT_CAPACITY_PERMM { 3.6e-3f }  // 0.0036 J/K/mm for 1.75mm PETG (0.0094 J/K/mm for 2.85mm PETG).
 
   // Advanced options
   #define MPC_SMOOTHING_FACTOR 0.5f                   // (0.0...1.0) Noisy temperature sensors may need a lower value for stabilization.
   #define MPC_MIN_AMBIENT_CHANGE 1.0f                 // (K/s) Modeled ambient temperature rate of change, when correcting model inaccuracies.
   #define MPC_STEADYSTATE 0.5f                        // (K/s) Temperature change rate for steady state logic to be enforced.
 
-  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center just above the surface.
+  #define MPC_TUNING_POS { X_CENTER, Y_CENTER, 1.0f } // (mm) M306 Autotuning position, ideally bed center at first layer height.
   #define MPC_TUNING_END_Z 10.0f                      // (mm) M306 Autotuning final Z position.
 #endif