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Merge pull request #5141 from thinkyhead/rc_old_slowdown_what

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OLD_SLOWDOWN does nothing, so remove it
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Scott Lahteine 2016-11-03 23:30:43 -05:00 committed by GitHub
commit 0269347682
1 changed files with 11 additions and 17 deletions
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28
Marlin/planner.cpp
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@ -929,24 +929,18 @@ void Planner::_buffer_line(const float &a, const float &b, const float &c, const
int moves_queued = movesplanned();
// Slow down when the buffer starts to empty, rather than wait at the corner for a buffer refill
#if ENABLED(OLD_SLOWDOWN) || ENABLED(SLOWDOWN)
bool mq = moves_queued > 1 && moves_queued < (BLOCK_BUFFER_SIZE) / 2;
#if ENABLED(OLD_SLOWDOWN)
if (mq) fr_mm_s *= 2.0 * moves_queued / (BLOCK_BUFFER_SIZE);
#endif
#if ENABLED(SLOWDOWN)
// segment time im micro seconds
unsigned long segment_time = lround(1000000.0/inverse_mm_s);
if (mq) {
if (segment_time < min_segment_time) {
// buffer is draining, add extra time. The amount of time added increases if the buffer is still emptied more.
inverse_mm_s = 1000000.0 / (segment_time + lround(2 * (min_segment_time - segment_time) / moves_queued));
#ifdef XY_FREQUENCY_LIMIT
segment_time = lround(1000000.0 / inverse_mm_s);
#endif
}
#if ENABLED(SLOWDOWN)
// Segment time im micro seconds
unsigned long segment_time = lround(1000000.0 / inverse_mm_s);
if (moves_queued > 1 && moves_queued < (BLOCK_BUFFER_SIZE) / 2) {
if (segment_time < min_segment_time) {
// buffer is draining, add extra time. The amount of time added increases if the buffer is still emptied more.
inverse_mm_s = 1000000.0 / (segment_time + lround(2 * (min_segment_time - segment_time) / moves_queued));
#ifdef XY_FREQUENCY_LIMIT
segment_time = lround(1000000.0 / inverse_mm_s);
#endif
}
#endif
}
#endif
block->nominal_speed = block->millimeters * inverse_mm_s; // (mm/sec) Always > 0