diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 8441d8f4cd..62aa501d2e 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -444,10 +444,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/Cartesio/Configuration.h b/Marlin/example_configurations/Cartesio/Configuration.h
index 30782aba5d..fe7c3c1eda 100644
--- a/Marlin/example_configurations/Cartesio/Configuration.h
+++ b/Marlin/example_configurations/Cartesio/Configuration.h
@@ -440,14 +440,16 @@
#define DEFAULT_MAX_FEEDRATE {200,200,20,20} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {1000,1000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 500 // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 10000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_ACCELERATION 500 // X, Y, Z and E acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION 10000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 1000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 10.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/Felix/Configuration.h b/Marlin/example_configurations/Felix/Configuration.h
index f11ff859c4..a222fc8454 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -423,14 +423,16 @@
#define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {5000,5000,100,80000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 1750 //1500 // X, Y, Z and E max acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 5000 // E acceleration in mm/s^2 for retracts
-#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
+#define DEFAULT_ACCELERATION 1750 // X, Y, Z and E max acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION 5000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
-#define DEFAULT_XYJERK 10 // (mm/sec)
-#define DEFAULT_ZJERK 0.3 //0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
+#define DEFAULT_XYJERK 10.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.3 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/Felix/DUAL/Configuration.h b/Marlin/example_configurations/Felix/DUAL/Configuration.h
index 0bd50d96b3..863ae7b058 100644
--- a/Marlin/example_configurations/Felix/DUAL/Configuration.h
+++ b/Marlin/example_configurations/Felix/DUAL/Configuration.h
@@ -421,14 +421,16 @@
#define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {5000,5000,100,80000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 1750 //1500 // X, Y, Z and E max acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 5000 // E acceleration in mm/s^2 for retracts
-#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
+#define DEFAULT_ACCELERATION 1750 // X, Y, Z and E max acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION 5000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
-#define DEFAULT_XYJERK 10 // (mm/sec)
-#define DEFAULT_ZJERK 0.3 //0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
+#define DEFAULT_XYJERK 10.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.3 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/Hephestos/Configuration.h b/Marlin/example_configurations/Hephestos/Configuration.h
index 91db2e7964..d82938ea3d 100644
--- a/Marlin/example_configurations/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/Hephestos/Configuration.h
@@ -432,14 +432,16 @@
#define DEFAULT_MAX_FEEDRATE {200, 200, 3.3, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {1100,1100,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 650 // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_ACCELERATION 650 // X, Y, Z and E acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 1000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 10.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/Hephestos_2/Configuration.h b/Marlin/example_configurations/Hephestos_2/Configuration.h
index 2cfd9a76cc..71ecca05fd 100644
--- a/Marlin/example_configurations/Hephestos_2/Configuration.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration.h
@@ -438,7 +438,9 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 1000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 0.4 // (mm/sec)
#define DEFAULT_EJERK 2.0 // (mm/sec)
diff --git a/Marlin/example_configurations/K8200/Configuration.h b/Marlin/example_configurations/K8200/Configuration.h
index 1c76937718..598658281a 100644
--- a/Marlin/example_configurations/K8200/Configuration.h
+++ b/Marlin/example_configurations/K8200/Configuration.h
@@ -458,13 +458,15 @@
#define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
#define DEFAULT_ACCELERATION 1000 // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 1000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/K8400/Configuration.h b/Marlin/example_configurations/K8400/Configuration.h
index 320c97e5f0..aa31de82e3 100644
--- a/Marlin/example_configurations/K8400/Configuration.h
+++ b/Marlin/example_configurations/K8400/Configuration.h
@@ -444,9 +444,11 @@
#define DEFAULT_RETRACT_ACCELERATION 6000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 10.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.5 // (mm/sec)
+#define DEFAULT_ZJERK 0.5 // (mm/sec)
#define DEFAULT_EJERK 20.0 // (mm/sec)
diff --git a/Marlin/example_configurations/K8400/Dual-head/Configuration.h b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
index cbbb036644..98d2877991 100644
--- a/Marlin/example_configurations/K8400/Dual-head/Configuration.h
+++ b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
@@ -444,9 +444,11 @@
#define DEFAULT_RETRACT_ACCELERATION 6000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 10.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.5 // (mm/sec)
+#define DEFAULT_ZJERK 0.5 // (mm/sec)
#define DEFAULT_EJERK 20.0 // (mm/sec)
diff --git a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
index 9310ab285e..81562afc55 100644
--- a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
+++ b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
@@ -444,10 +444,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/RigidBot/Configuration.h b/Marlin/example_configurations/RigidBot/Configuration.h
index 233af5f25a..d312769232 100644
--- a/Marlin/example_configurations/RigidBot/Configuration.h
+++ b/Marlin/example_configurations/RigidBot/Configuration.h
@@ -434,18 +434,20 @@
// @section motion
#define DEFAULT_AXIS_STEPS_PER_UNIT {44.3090, 22.1545, 1600, 53.5} // default steps per unit for RigidBot with standard hardware
- // default steps for 16-teth polleys {100.06,50.06,1600,76}, HPX2-MAX E=504, RigidBot E=53.5, Peter Stoneham's=76
+ // default steps for 16-tooth pulleys {100.06,50.06,1600,76}, HPX2-MAX E=504, RigidBot E=53.5, Peter Stoneham's=76
#define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {800, 800, 100, 10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 600 // X, Y, Z and E acceleration in mm/s^2 for printing moves
-#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
-#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
+#define DEFAULT_ACCELERATION 600 // X, Y, Z and E acceleration in mm/s^2 for printing moves
+#define DEFAULT_RETRACT_ACCELERATION 1000 // E acceleration in mm/s^2 for retracts
+#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
-#define DEFAULT_XYJERK 8.0 // (mm/sec)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
+#define DEFAULT_XYJERK 8.0 // (mm/sec)
#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/SCARA/Configuration.h b/Marlin/example_configurations/SCARA/Configuration.h
index 61aebb3411..d2313a2468 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -452,10 +452,12 @@
#define DEFAULT_RETRACT_ACCELERATION 2000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 400 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
-#define DEFAULT_XYJERK 5 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 3 // (mm/sec)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
+#define DEFAULT_XYJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 3.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/TAZ4/Configuration.h b/Marlin/example_configurations/TAZ4/Configuration.h
index aa787ccb66..b10b542fc9 100644
--- a/Marlin/example_configurations/TAZ4/Configuration.h
+++ b/Marlin/example_configurations/TAZ4/Configuration.h
@@ -461,13 +461,15 @@
#define DEFAULT_MAX_FEEDRATE {800, 800, 8, 50} // (mm/sec)
#define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are good for Skeinforge 40+, for older versions raise them a lot.
-#define DEFAULT_ACCELERATION 500 // X, Y, Z and E acceleration in mm/s^2 for printing moves
+#define DEFAULT_ACCELERATION 500 // X, Y, Z and E acceleration in mm/s^2 for printing moves
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
-#define DEFAULT_XYJERK 8.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
+#define DEFAULT_XYJERK 8.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
#define DEFAULT_EJERK 10.0 // (mm/sec)
diff --git a/Marlin/example_configurations/WITBOX/Configuration.h b/Marlin/example_configurations/WITBOX/Configuration.h
index f744b82051..f228d3b249 100644
--- a/Marlin/example_configurations/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/WITBOX/Configuration.h
@@ -436,10 +436,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 10.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/adafruit/ST7565/Configuration.h b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
index 3053190490..17fea4b863 100644
--- a/Marlin/example_configurations/adafruit/ST7565/Configuration.h
+++ b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
@@ -444,10 +444,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/delta/biv2.5/Configuration.h b/Marlin/example_configurations/delta/biv2.5/Configuration.h
index 03a3428a96..e73f405f1b 100644
--- a/Marlin/example_configurations/delta/biv2.5/Configuration.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration.h
@@ -487,10 +487,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 15.0 // (mm/sec)
#define DEFAULT_ZJERK 15.0 // (mm/sec) Must be same as XY for delta
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index 94b9f0b129..1192234c21 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -487,10 +487,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 20.0 // (mm/sec) Must be same as XY for delta
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index 00d4a0cde9..864f58f03a 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -487,10 +487,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 20.0 // (mm/sec) Must be same as XY for delta
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration.h b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
index b56e19ca39..7f1e4443a4 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
@@ -483,10 +483,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 20.0 // (mm/sec) Must be same as XY for delta
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration.h b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
index 36f3b8f288..075c800324 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
@@ -493,7 +493,9 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 20.0 // (mm/sec)
#define DEFAULT_EJERK 20.0 // (mm/sec)
diff --git a/Marlin/example_configurations/makibox/Configuration.h b/Marlin/example_configurations/makibox/Configuration.h
index 401e1387cd..eb29895066 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/Configuration.h
@@ -447,10 +447,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 3000 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index c982f0bc50..dc6f809ed1 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -438,10 +438,12 @@
#define DEFAULT_RETRACT_ACCELERATION 3000 // E acceleration in mm/s^2 for retracts
#define DEFAULT_TRAVEL_ACCELERATION 500 // X, Y, Z acceleration in mm/s^2 for travel (non printing) moves
-// The speed change that does not require acceleration (i.e. the software might assume it can be done instantaneously)
+// "Jerk" specifies the minumum speed change that requires acceleration.
+// When changing speed and direction, if the difference is less than the
+// value set here, it may happen instantaneously.
#define DEFAULT_XYJERK 20.0 // (mm/sec)
-#define DEFAULT_ZJERK 0.4 // (mm/sec)
-#define DEFAULT_EJERK 5.0 // (mm/sec)
+#define DEFAULT_ZJERK 0.4 // (mm/sec)
+#define DEFAULT_EJERK 5.0 // (mm/sec)
//===========================================================================