From 4376f8ba3caee7d7f40f47075006151687199b4a Mon Sep 17 00:00:00 2001
From: Ian Bassi <ian.bassi@outlook.com>
Date: Tue, 1 Apr 2025 18:34:51 -0300
Subject: [PATCH] Lowering Jerk

---
 doc/Calibration.md        |  2 +-
 src/slic3r/GUI/Plater.cpp | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/doc/Calibration.md b/doc/Calibration.md
index 61871f715e..ba94745af3 100644
--- a/doc/Calibration.md
+++ b/doc/Calibration.md
@@ -169,7 +169,7 @@ ZV Input Shaping introduces an anti-vibration signal into the stepper motion for
       1. Acceleration high enough to trigger ringing (e.g., 2000 mm/s²).
       2. Speed high enough to trigger ringing (e.g., 100 mm/s).
       3. Jerk
-         1. If using a [Classic Jerk](https://marlinfw.org/docs/configuration/configuration.html#jerk-) use a high value (e.g., 20).
+         1. If using a [Classic Jerk](https://marlinfw.org/docs/configuration/configuration.html#jerk-) or [Klipper Square Corner Velocity](https://www.klipper3d.org/Kinematics.html?h=square+corner+velocity#look-ahead) use a high value (e.g., 20).
          2. If using [Junction Deviation](https://marlinfw.org/docs/features/junction_deviation.html) this test will use 0.25 (high enough to most printers).
    2. Use a high gloss filament to make the ringing more visible.
    3. In printer settigs:
diff --git a/src/slic3r/GUI/Plater.cpp b/src/slic3r/GUI/Plater.cpp
index 8df37f6234..313809b56e 100644
--- a/src/slic3r/GUI/Plater.cpp
+++ b/src/slic3r/GUI/Plater.cpp
@@ -10167,8 +10167,8 @@ void Plater::calib_input_shaping_freq(const Calib_Params& params)
     filament_config->set_key_value("filament_max_volumetric_speed", new ConfigOptionFloats { 200 });
     filament_config->set_key_value("enable_pressure_advance", new ConfigOptionBools {false });
     filament_config->set_key_value("pressure_advance", new ConfigOptionFloats { 0.0 });
-    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 500.0 });// Set jerk to maximum.
-    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 500.0 });
+    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 20.0 });
+    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 20.0 });
     print_config->set_key_value("enable_overhang_speed", new ConfigOptionBool { false });
     print_config->set_key_value("timelapse_type", new ConfigOptionEnum<TimelapseType>(tlTraditional));
     print_config->set_key_value("wall_loops", new ConfigOptionInt(1));
@@ -10208,8 +10208,8 @@ void Plater::calib_input_shaping_damp(const Calib_Params& params)
     filament_config->set_key_value("filament_max_volumetric_speed", new ConfigOptionFloats { 200 });
     filament_config->set_key_value("enable_pressure_advance", new ConfigOptionBools{false});
     filament_config->set_key_value("pressure_advance", new ConfigOptionFloats{0.0});
-    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 500.0 });// Set jerk to maximum.
-    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 500.0 });
+    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 20.0 });
+    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 20.0 });
     print_config->set_key_value("enable_overhang_speed", new ConfigOptionBool{false});
     print_config->set_key_value("timelapse_type", new ConfigOptionEnum<TimelapseType>(tlTraditional));
     print_config->set_key_value("wall_loops", new ConfigOptionInt(1));
@@ -10249,8 +10249,8 @@ void Plater::calib_junction_deviation(const Calib_Params& params)
     filament_config->set_key_value("filament_max_volumetric_speed", new ConfigOptionFloats{200});
     filament_config->set_key_value("enable_pressure_advance", new ConfigOptionBools{false});
     filament_config->set_key_value("pressure_advance", new ConfigOptionFloats{0.0});
-    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 500.0 });// Set jerk to maximum.
-    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 500.0 });
+    print_config->set_key_value("default_jerk", new ConfigOptionFloat { 20.0 });
+    print_config->set_key_value("outer_wall_jerk", new ConfigOptionFloat { 20.0 });
     print_config->set_key_value("enable_overhang_speed", new ConfigOptionBool{false});
     print_config->set_key_value("timelapse_type", new ConfigOptionEnum<TimelapseType>(tlTraditional));
     print_config->set_key_value("wall_loops", new ConfigOptionInt(1));