From c8cd824be2984397118d0b3baca6d7cde157711b Mon Sep 17 00:00:00 2001 From: Nick Date: Mon, 1 Mar 2021 10:23:10 +0000 Subject: [PATCH] Safe Z homing for Power Loss Recovery (#16909) --- Marlin/Configuration_adv.h | 7 ++++++- Marlin/src/feature/powerloss.cpp | 17 ++++++++++++----- Marlin/src/inc/SanityCheck.h | 18 +++++++++++------- Marlin/src/module/probe.cpp | 8 ++++---- Marlin/src/module/probe.h | 2 +- buildroot/tests/rambo-tests | 8 +++++--- 6 files changed, 39 insertions(+), 21 deletions(-) diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h index b1d8be1069..9032f4d2d8 100644 --- a/Marlin/Configuration_adv.h +++ b/Marlin/Configuration_adv.h @@ -1256,7 +1256,6 @@ #if ENABLED(POWER_LOSS_RECOVERY) #define PLR_ENABLED_DEFAULT false // Power Loss Recovery enabled by default. (Set with 'M413 Sn' & M500) //#define BACKUP_POWER_SUPPLY // Backup power / UPS to move the steppers on power loss - //#define POWER_LOSS_RECOVER_ZHOME // Z homing is needed for proper recovery. 99.9% of the time this should be disabled! //#define POWER_LOSS_ZRAISE 2 // (mm) Z axis raise on resume (on power loss with UPS) //#define POWER_LOSS_PIN 44 // Pin to detect power loss. Set to -1 to disable default pin on boards without module. //#define POWER_LOSS_STATE HIGH // State of pin indicating power loss @@ -1268,6 +1267,12 @@ // Without a POWER_LOSS_PIN the following option helps reduce wear on the SD card, // especially with "vase mode" printing. Set too high and vases cannot be continued. #define POWER_LOSS_MIN_Z_CHANGE 0.05 // (mm) Minimum Z change before saving power-loss data + + // Enable if Z homing is needed for proper recovery. 99.9% of the time this should be disabled! + //#define POWER_LOSS_RECOVER_ZHOME + #if ENABLED(POWER_LOSS_RECOVER_ZHOME) + //#define POWER_LOSS_ZHOME_POS { 0, 0 } // Safe XY position to home Z while avoiding objects on the bed + #endif #endif /** diff --git a/Marlin/src/feature/powerloss.cpp b/Marlin/src/feature/powerloss.cpp index 1b1f2bd681..7413b5bd56 100644 --- a/Marlin/src/feature/powerloss.cpp +++ b/Marlin/src/feature/powerloss.cpp @@ -384,18 +384,25 @@ void PrintJobRecovery::resume() { // Home safely with no Z raise gcode.process_subcommands_now_P(PSTR( "G28R0" // No raise during G28 - #if IS_CARTESIAN && DISABLED(POWER_LOSS_RECOVER_ZHOME) + #if IS_CARTESIAN && (DISABLED(POWER_LOSS_RECOVER_ZHOME) || defined(POWER_LOSS_ZHOME_POS)) "XY" // Don't home Z on Cartesian unless overridden #endif )); #endif - // Pretend that all axes are homed + #ifdef POWER_LOSS_ZHOME_POS + // If defined move to a safe Z homing position that avoids the print + constexpr xy_pos_t homepos = POWER_LOSS_ZHOME_POS; + sprintf_P(cmd, PSTR("G1 X%s Y%s F1000\nG28Z", dtostrf(homepos.x, 1, 3, str_1), dtostrf(homepos.y, 1, 3, str_2))); + gcode.process_subcommands_now(cmd); + #endif + + // Ensure that all axes are marked as homed set_all_homed(); #if ENABLED(POWER_LOSS_RECOVER_ZHOME) - // Z has been homed so restore Z to ZsavedPos + POWER_LOSS_ZRAISE + // Now move to ZsavedPos + POWER_LOSS_ZRAISE sprintf_P(cmd, PSTR("G1 F500 Z%s"), dtostrf(info.current_position.z + POWER_LOSS_ZRAISE, 1, 3, str_1)); gcode.process_subcommands_now(cmd); #endif @@ -467,7 +474,7 @@ void PrintJobRecovery::resume() { // Additional purge if configured #if POWER_LOSS_PURGE_LEN - sprintf_P(cmd, PSTR("G1 E%d F200"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_RETRACT_LEN)); + sprintf_P(cmd, PSTR("G1 E%d F3000"), (POWER_LOSS_PURGE_LEN) + (POWER_LOSS_RETRACT_LEN)); gcode.process_subcommands_now(cmd); #endif @@ -485,7 +492,7 @@ void PrintJobRecovery::resume() { // Move back to the saved Z dtostrf(info.current_position.z, 1, 3, str_1); #if Z_HOME_DIR > 0 || ENABLED(POWER_LOSS_RECOVER_ZHOME) - sprintf_P(cmd, PSTR("G1 Z%s F200"), str_1); + sprintf_P(cmd, PSTR("G1 Z%s F500"), str_1); #else gcode.process_subcommands_now_P(PSTR("G1 Z0 F200")); sprintf_P(cmd, PSTR("G92.9 Z%s"), str_1); diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h index 6581f629b0..3f7931e0b6 100644 --- a/Marlin/src/inc/SanityCheck.h +++ b/Marlin/src/inc/SanityCheck.h @@ -1641,7 +1641,7 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal * Allen Key * Deploying the Allen Key probe uses big moves in z direction. Too dangerous for an unhomed z-axis. */ -#if BOTH(Z_PROBE_ALLEN_KEY, Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && (Z_HOME_DIR < 0) +#if BOTH(Z_PROBE_ALLEN_KEY, Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && Z_HOME_DIR < 0 #error "You can't home to a Z min endstop with a Z_PROBE_ALLEN_KEY." #endif @@ -2913,12 +2913,16 @@ static_assert( _ARR_TEST(3,0) && _ARR_TEST(3,1) && _ARR_TEST(3,2) #endif #endif -#if ENABLED(BACKUP_POWER_SUPPLY) && !PIN_EXISTS(POWER_LOSS) - #error "BACKUP_POWER_SUPPLY requires a POWER_LOSS_PIN." -#endif - -#if BOTH(POWER_LOSS_PULLUP, POWER_LOSS_PULLDOWN) - #error "You can't enable POWER_LOSS_PULLUP and POWER_LOSS_PULLDOWN at the same time." +#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 BOTH(IS_CARTESIAN, POWER_LOSS_RECOVER_ZHOME) && Z_HOME_DIR < 0 && !defined(POWER_LOSS_ZHOME_POS) + #error "POWER_LOSS_RECOVER_ZHOME requires POWER_LOSS_ZHOME_POS for a Cartesian that homes to ZMIN." + #endif #endif #if ENABLED(Z_STEPPER_AUTO_ALIGN) diff --git a/Marlin/src/module/probe.cpp b/Marlin/src/module/probe.cpp index 7dcf1dff31..7333aaa748 100644 --- a/Marlin/src/module/probe.cpp +++ b/Marlin/src/module/probe.cpp @@ -340,7 +340,7 @@ FORCE_INLINE void probe_specific_action(const bool deploy) { * - If a preheat input is higher than the current target, raise the target temperature. * - If a preheat input is higher than the current temperature, wait for stabilization. */ - void Probe::preheat_for_probing(const uint16_t hotend_temp, const uint16_t bed_temp) { + void Probe::preheat_for_probing(const int16_t hotend_temp, const int16_t bed_temp) { #if HAS_HOTEND && (PROBING_NOZZLE_TEMP || LEVELING_NOZZLE_TEMP) #define WAIT_FOR_NOZZLE_HEAT #endif @@ -351,17 +351,17 @@ FORCE_INLINE void probe_specific_action(const bool deploy) { DEBUG_ECHOPGM("Preheating "); #if ENABLED(WAIT_FOR_NOZZLE_HEAT) - const uint16_t hotendPreheat = hotend_temp > thermalManager.degTargetHotend(0) ? hotend_temp : 0; + const int16_t hotendPreheat = hotend_temp > thermalManager.degTargetHotend(0) ? hotend_temp : 0; if (hotendPreheat) { DEBUG_ECHOPAIR("hotend (", hotendPreheat, ")"); thermalManager.setTargetHotend(hotendPreheat, 0); } #elif ENABLED(WAIT_FOR_BED_HEAT) - constexpr uint16_t hotendPreheat = 0; + constexpr int16_t hotendPreheat = 0; #endif #if ENABLED(WAIT_FOR_BED_HEAT) - const uint16_t bedPreheat = bed_temp > thermalManager.degTargetBed() ? bed_temp : 0; + const int16_t bedPreheat = bed_temp > thermalManager.degTargetBed() ? bed_temp : 0; if (bedPreheat) { if (hotendPreheat) DEBUG_ECHOPGM(" and "); DEBUG_ECHOPAIR("bed (", bedPreheat, ")"); diff --git a/Marlin/src/module/probe.h b/Marlin/src/module/probe.h index df7bdd23a1..b54bf00f00 100644 --- a/Marlin/src/module/probe.h +++ b/Marlin/src/module/probe.h @@ -61,7 +61,7 @@ public: static xyz_pos_t offset; #if EITHER(PREHEAT_BEFORE_PROBING, PREHEAT_BEFORE_LEVELING) - static void preheat_for_probing(const uint16_t hotend_temp, const uint16_t bed_temp); + static void preheat_for_probing(const int16_t hotend_temp, const int16_t bed_temp); #endif static bool set_deployed(const bool deploy); diff --git a/buildroot/tests/rambo-tests b/buildroot/tests/rambo-tests index d471f4201c..02ecf5d3fc 100755 --- a/buildroot/tests/rambo-tests +++ b/buildroot/tests/rambo-tests @@ -22,9 +22,11 @@ opt_add TEMP_CHAMBER_PIN 3 opt_add HEATER_CHAMBER_PIN 45 opt_set GRID_MAX_POINTS_X 16 opt_set FANMUX0_PIN 53 -opt_disable USE_WATCHDOG +opt_set Z_HOME_DIR 1 +opt_enable USE_ZMAX_PLUG +opt_disable USE_ZMIN_PLUG Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN USE_WATCHDOG opt_enable REPRAP_DISCOUNT_SMART_CONTROLLER LCD_PROGRESS_BAR LCD_PROGRESS_BAR_TEST \ - FIX_MOUNTED_PROBE Z_SAFE_HOMING CODEPENDENT_XY_HOMING PIDTEMPBED PROBE_TEMP_COMPENSATION \ + FIX_MOUNTED_PROBE CODEPENDENT_XY_HOMING PIDTEMPBED PROBE_TEMP_COMPENSATION \ PREHEAT_BEFORE_PROBING PROBING_HEATERS_OFF PROBING_FANS_OFF PROBING_STEPPERS_OFF WAIT_FOR_BED_HEATER \ EEPROM_SETTINGS SDSUPPORT SD_REPRINT_LAST_SELECTED_FILE BINARY_FILE_TRANSFER \ BLINKM PCA9533 PCA9632 RGB_LED RGB_LED_R_PIN RGB_LED_G_PIN RGB_LED_B_PIN LED_CONTROL_MENU \ @@ -38,7 +40,7 @@ opt_enable REPRAP_DISCOUNT_SMART_CONTROLLER LCD_PROGRESS_BAR LCD_PROGRESS_BAR_TE SKEW_CORRECTION SKEW_CORRECTION_FOR_Z SKEW_CORRECTION_GCODE \ BACKLASH_COMPENSATION BACKLASH_GCODE BAUD_RATE_GCODE BEZIER_CURVE_SUPPORT \ FWRETRACT ARC_P_CIRCLES CNC_WORKSPACE_PLANES CNC_COORDINATE_SYSTEMS \ - PSU_CONTROL AUTO_POWER_CONTROL POWER_LOSS_RECOVERY POWER_LOSS_PIN POWER_LOSS_STATE \ + PSU_CONTROL AUTO_POWER_CONTROL POWER_LOSS_RECOVERY POWER_LOSS_PIN POWER_LOSS_STATE POWER_LOSS_RECOVER_ZHOME \ SLOW_PWM_HEATERS THERMAL_PROTECTION_CHAMBER LIN_ADVANCE EXTRA_LIN_ADVANCE_K \ HOST_ACTION_COMMANDS HOST_PROMPT_SUPPORT PINS_DEBUGGING MAX7219_DEBUG M114_DETAIL opt_add DEBUG_POWER_LOSS_RECOVERY