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divide only when required

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This commit is contained in:
Bob-the-Kuhn 2017-12-08 18:14:27 -06:00
parent 728acf521c
commit 65d0f32f82
1 changed files with 2 additions and 1 deletions
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3
Marlin/src/module/planner.cpp
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@ -1092,7 +1092,8 @@ void Planner::_buffer_steps(const int32_t (&target)[XYZE], float fr_mm_s, const
float max_stepper_speed = 0, min_axis_accel_ratio = 1; // ratio < 1 means acceleration ramp needed
LOOP_XYZE(i) {
const float cs = FABS((current_speed[i] = delta_mm[i] * inverse_secs));
NOMORE(min_axis_accel_ratio, max_jerk[i] / cs);
if (cs > max_jerk[i])
NOMORE(min_axis_accel_ratio, max_jerk[i] / cs);
NOLESS(max_stepper_speed, cs);
#if ENABLED(DISTINCT_E_FACTORS)
if (i == E_AXIS) i += extruder;