From 02cce7d4b40e229338619813912ad62f0480fa3a Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Wed, 26 Feb 2020 06:39:29 -0600
Subject: [PATCH] Add TRAVEL_EXTRA_XYJERK option
See #16949
Co-Authored-By: josedpedroso <josedpedroso@users.noreply.github.com>
---
Marlin/Configuration.h | 2 ++
Marlin/src/module/planner.cpp | 11 +++++++++--
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index fd3687a7fc..5679aa3093 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -784,6 +784,8 @@
#define DEFAULT_YJERK 10.0
#define DEFAULT_ZJERK 0.3
+ //#define TRAVEL_EXTRA_XYJERK 0.0 // Additional jerk allowance for all travel moves
+
//#define LIMITED_JERK_EDITING // Limit edit via M205 or LCD to DEFAULT_aJERK * 2
#if ENABLED(LIMITED_JERK_EDITING)
#define MAX_JERK_EDIT_VALUES { 20, 20, 0.6, 10 } // ...or, set your own edit limits
diff --git a/Marlin/src/module/planner.cpp b/Marlin/src/module/planner.cpp
index bf01c771ae..dd1109011e 100644
--- a/Marlin/src/module/planner.cpp
+++ b/Marlin/src/module/planner.cpp
@@ -2397,8 +2397,15 @@ bool Planner::_populate_block(block_t * const block, bool split_move,
LOOP_XYZE(i)
#endif
{
- const float jerk = ABS(current_speed[i]), // cs : Starting from zero, change in speed for this axis
- maxj = max_jerk[i]; // mj : The max jerk setting for this axis
+ const float jerk = ABS(current_speed[i]); // cs : Starting from zero, change in speed for this axis
+
+ float maxj = max_jerk[i]; // mj : The max jerk setting for this axis
+
+ #ifdef TRAVEL_EXTRA_XYJERK
+ if ((TRAVEL_EXTRA_XYJERK) && !de <= 0 && (i == X_AXIS || i == Y_AXIS))
+ maxj += TRAVEL_EXTRA_XYJERK; // Extra jerk allowance for travel moves
+ #endif
+
if (jerk > maxj) { // cs > mj : New current speed too fast?
if (limited) { // limited already?
const float mjerk = nominal_speed * maxj; // ns*mj
--
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