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Fix, Improve Power-Loss Recovery #22828

Merged
merged 13 commits into from
Feb 9, 2022
Merged

Fix, Improve Power-Loss Recovery #22828

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a22cb8f
Home XY and then home Z if needed
moham96 Sep 23, 2021
6fb4a2c
Override Z_SAFE_HOMING with POWER_LOSS_ZHOME_POS
thinkyhead Sep 25, 2021
ebd2107
Add 'M413 C' to test PLR
thinkyhead Sep 25, 2021
01ca409
Update G92.9 calls
thinkyhead Sep 25, 2021
5dbc820
Store a position in the block with sdpos
thinkyhead Sep 25, 2021
fb5a37b
Apply probe offset to POWER_LOSS_ZHOME_POS
thinkyhead Sep 25, 2021
f9f5abf
Save the *logical* position
thinkyhead Sep 25, 2021
ca4852e
better G92.9 E
thinkyhead Sep 25, 2021
e4715fe
include probe.h
thinkyhead Sep 25, 2021
0901fb2
Merge branch 'bugfix-2.0.x' into pr/22828
thinkyhead Jan 25, 2022
a043ec9
merge followup
thinkyhead Jan 25, 2022
995ca16
Merge 'bugfix-2.0.x' into pr/22828
thinkyhead Feb 9, 2022
4139524
Update comment
thinkyhead Feb 9, 2022
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14 changes: 6 additions & 8 deletions Marlin/src/feature/powerloss.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -390,14 +390,12 @@ void PrintJobRecovery::resume() {

#if ENABLED(POWER_LOSS_RECOVER_ZHOME) && defined(POWER_LOSS_ZHOME_POS)
#define HOMING_Z_DOWN 1
#else
#define HOME_XY_ONLY 1
#endif

float z_now = info.flag.raised ? z_raised : z_print;

// Reset E to 0 and set Z to the real position
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#if HOME_XY_ONLY
#if !HOMING_Z_DOWN
sprintf_P(cmd, PSTR("G92.9Z%s"), dtostrf(z_now, 1, 3, str_1));
gcode.process_subcommands_now(cmd);
#endif
Expand All @@ -409,15 +407,15 @@ void PrintJobRecovery::resume() {
gcode.process_subcommands_now(cmd);
}

// Home XY with no Z raise, and also home Z here if Z isn't homing down below.
// Home XY with no Z raise
gcode.process_subcommands_now_P(PSTR("G28R0XY")); // No raise during G28

#endif

#if HOMING_Z_DOWN
// Move to a safe XY position and home Z while avoiding the print.
constexpr xy_pos_t p = POWER_LOSS_ZHOME_POS;
sprintf_P(cmd, PSTR("G1X%sY%sF1000\nG28Z"), dtostrf(p.x, 1, 3, str_1), dtostrf(p.y, 1, 3, str_2));
sprintf_P(cmd, PSTR("G1X%sY%sF1000\nG28HZ"), dtostrf(p.x, 1, 3, str_1), dtostrf(p.y, 1, 3, str_2));
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gcode.process_subcommands_now(cmd);
#endif

Expand All @@ -431,7 +429,7 @@ void PrintJobRecovery::resume() {
sprintf_P(cmd, PSTR("M420S%cZ%s"), '0' + (char)info.flag.leveling, dtostrf(info.fade, 1, 1, str_1));
gcode.process_subcommands_now(cmd);

#if HOME_XY_ONLY
#if !HOMING_Z_DOWN
// The physical Z was adjusted at power-off so undo the M420S1 correction to Z with G92.9.
sprintf_P(cmd, PSTR("G92.9Z%s"), dtostrf(z_now, 1, 1, str_1));
gcode.process_subcommands_now(cmd);
Expand Down Expand Up @@ -513,12 +511,12 @@ void PrintJobRecovery::resume() {

// Un-retract if there was a retract at outage
#if ENABLED(BACKUP_POWER_SUPPLY) && POWER_LOSS_RETRACT_LEN > 0
gcode.process_subcommands_now_P(PSTR("G1E" STRINGIFY(POWER_LOSS_RETRACT_LEN) "F3000"));
gcode.process_subcommands_now_P(PSTR("G1F3000E" STRINGIFY(POWER_LOSS_RETRACT_LEN)));
#endif

// Additional purge on resume if configured
#if POWER_LOSS_PURGE_LEN
sprintf_P(cmd, PSTR("G1 E%d F3000"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_RETRACT_LEN));
sprintf_P(cmd, PSTR("G1F3000E%d"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_RETRACT_LEN));
gcode.process_subcommands_now(cmd);
#endif

Expand Down
11 changes: 8 additions & 3 deletions Marlin/src/gcode/calibrate/G28.cpp
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Expand Up @@ -367,9 +367,10 @@ void GcodeSuite::G28() {

TERN_(HOME_Z_FIRST, if (doZ) homeaxis(Z_AXIS));

const float z_homing_height = parser.seenval('R') ? parser.value_linear_units() : Z_HOMING_HEIGHT;
const bool seenR = parser.seenval('R');
const float z_homing_height = seenR ? parser.value_linear_units() : Z_HOMING_HEIGHT;

if (z_homing_height && (LINEAR_AXIS_GANG(doX, || doY, || TERN0(Z_SAFE_HOMING, doZ), || doI, || doJ, || doK))) {
if (z_homing_height && (seenR || LINEAR_AXIS_GANG(doX, || doY, || TERN0(Z_SAFE_HOMING, doZ), || doI, || doJ, || doK))) {
// Raise Z before homing any other axes and z is not already high enough (never lower z)
if (DEBUGGING(LEVELING)) DEBUG_ECHOLNPGM("Raise Z (before homing) by ", z_homing_height);
do_z_clearance(z_homing_height);
Expand Down Expand Up @@ -423,7 +424,11 @@ void GcodeSuite::G28() {
stepper.set_separate_multi_axis(false);
#endif

TERN(Z_SAFE_HOMING, home_z_safely(), homeaxis(Z_AXIS));
#if ENABLED(Z_SAFE_HOMING)
if (TERN1(POWER_LOSS_RECOVERY, !parser.seen_test('H'))) home_z_safely(); else homeaxis(Z_AXIS);
#else
homeaxis(Z_AXIS);
#endif
probe.move_z_after_homing();
}
#endif
Expand Down
2 changes: 0 additions & 2 deletions Marlin/src/inc/SanityCheck.h
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Expand Up @@ -3364,8 +3364,6 @@ static_assert(_PLUS_TEST(4), "HOMING_FEEDRATE_MM_M values must be positive.");
#if ENABLED(POWER_LOSS_RECOVERY)
#if ENABLED(BACKUP_POWER_SUPPLY) && !PIN_EXISTS(POWER_LOSS)
#error "BACKUP_POWER_SUPPLY requires a POWER_LOSS_PIN."
#elif BOTH(POWER_LOSS_RECOVER_ZHOME, Z_SAFE_HOMING)
#error "POWER_LOSS_RECOVER_ZHOME cannot be used with Z_SAFE_HOMING."
#elif BOTH(POWER_LOSS_PULLUP, POWER_LOSS_PULLDOWN)
#error "You can't enable POWER_LOSS_PULLUP and POWER_LOSS_PULLDOWN at the same time."
#elif ENABLED(POWER_LOSS_RECOVER_ZHOME) && Z_HOME_TO_MAX
Expand Down