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PLR: configurable UNRETRACT #27970

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PLR: configurable UNRETRACT #27970

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1 change: 1 addition & 0 deletions Marlin/Configuration_adv.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1806,6 +1806,7 @@
//#define BACKUP_POWER_SUPPLY // Backup power / UPS to move the steppers on power-loss
#if ENABLED(BACKUP_POWER_SUPPLY)
//#define POWER_LOSS_RETRACT_LEN 10 // (mm) Length of filament to retract on fail
#define POWER_LOSS_UNRETRACT_LEN POWER_LOSS_RETRACT_LEN // (mm) Length of filament to unretract on resume
#endif

// Enable if Z homing is needed for proper recovery. 99.9% of the time this should be disabled!
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9 changes: 5 additions & 4 deletions Marlin/src/feature/powerloss.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,8 @@ PrintJobRecovery recovery;
#undef POWER_LOSS_RETRACT_LEN // No retract at outage without backup power
#endif
#ifndef POWER_LOSS_RETRACT_LEN
#define POWER_LOSS_RETRACT_LEN 0
#define POWER_LOSS_RETRACT_LEN 0
#define POWER_LOSS_UNRETRACT_LEN 0
#endif
#ifndef POWER_LOSS_PURGE_LEN
#define POWER_LOSS_PURGE_LEN 0
Expand Down Expand Up @@ -548,13 +549,13 @@ void PrintJobRecovery::resume() {
#endif

// Un-retract if there was a retract at outage
#if ENABLED(BACKUP_POWER_SUPPLY) && POWER_LOSS_RETRACT_LEN > 0
PROCESS_SUBCOMMANDS_NOW(F("G1F3000E" STRINGIFY(POWER_LOSS_RETRACT_LEN)));
#if ENABLED(BACKUP_POWER_SUPPLY) && POWER_LOSS_UNRETRACT_LEN > 0
PROCESS_SUBCOMMANDS_NOW(F("G1F3000E" STRINGIFY(POWER_LOSS_UNRETRACT_LEN)));
#endif

// Additional purge on resume if configured
#if POWER_LOSS_PURGE_LEN
PROCESS_SUBCOMMANDS_NOW(TS(F("G1F3000E"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_RETRACT_LEN)));
PROCESS_SUBCOMMANDS_NOW(TS(F("G1F3000E"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_UNRETRACT_LEN)));
#endif

#if ENABLED(NOZZLE_CLEAN_FEATURE)
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