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Firmware2/Marlin/src/module/probe.cpp
Scott Lahteine f2c3b0d476 Use bit flags for homed/known
2018-06-11 22:05:16 -05:00

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* probe.cpp
*/
#include "../inc/MarlinConfig.h"
#if HAS_BED_PROBE
#include "probe.h"
#include "motion.h"
#include "temperature.h"
#include "endstops.h"
#include "../gcode/gcode.h"
#include "../lcd/ultralcd.h"
#include "../Marlin.h"
#if HAS_LEVELING
#include "../feature/bedlevel/bedlevel.h"
#endif
#if ENABLED(DELTA)
#include "../module/delta.h"
#endif
#if ENABLED(BABYSTEP_ZPROBE_OFFSET)
#include "planner.h"
#endif
float zprobe_zoffset; // Initialized by settings.load()
#if HAS_Z_SERVO_PROBE
#include "../module/servo.h"
const int z_servo_angle[2] = Z_SERVO_ANGLES;
#endif
#if ENABLED(Z_PROBE_SLED)
#ifndef SLED_DOCKING_OFFSET
#define SLED_DOCKING_OFFSET 0
#endif
/**
* Method to dock/undock a sled designed by Charles Bell.
*
* stow[in] If false, move to MAX_X and engage the solenoid
* If true, move to MAX_X and release the solenoid
*/
static void dock_sled(bool stow) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOPAIR("dock_sled(", stow);
SERIAL_CHAR(')');
SERIAL_EOL();
}
#endif
// Dock sled a bit closer to ensure proper capturing
do_blocking_move_to_x(X_MAX_POS + SLED_DOCKING_OFFSET - ((stow) ? 1 : 0));
#if HAS_SOLENOID_1 && DISABLED(EXT_SOLENOID)
WRITE(SOL1_PIN, !stow); // switch solenoid
#endif
}
#elif ENABLED(Z_PROBE_ALLEN_KEY)
FORCE_INLINE void do_blocking_move_to(const float (&raw)[XYZ], const float &fr_mm_s) {
do_blocking_move_to(raw[X_AXIS], raw[Y_AXIS], raw[Z_AXIS], fr_mm_s);
}
void run_deploy_moves_script() {
#if defined(Z_PROBE_ALLEN_KEY_DEPLOY_1_X) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_1_Y) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_1_Z)
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_1_X
#define Z_PROBE_ALLEN_KEY_DEPLOY_1_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_1_Y
#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_1_Z
#define Z_PROBE_ALLEN_KEY_DEPLOY_1_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE
#define Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE 0.0
#endif
const float deploy_1[] = { Z_PROBE_ALLEN_KEY_DEPLOY_1_X, Z_PROBE_ALLEN_KEY_DEPLOY_1_Y, Z_PROBE_ALLEN_KEY_DEPLOY_1_Z };
do_blocking_move_to(deploy_1, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_DEPLOY_1_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_DEPLOY_2_X) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_2_Y) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_2_Z)
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_2_X
#define Z_PROBE_ALLEN_KEY_DEPLOY_2_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_2_Y
#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_2_Z
#define Z_PROBE_ALLEN_KEY_DEPLOY_2_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE
#define Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE 0.0
#endif
const float deploy_2[] = { Z_PROBE_ALLEN_KEY_DEPLOY_2_X, Z_PROBE_ALLEN_KEY_DEPLOY_2_Y, Z_PROBE_ALLEN_KEY_DEPLOY_2_Z };
do_blocking_move_to(deploy_2, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_DEPLOY_2_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_DEPLOY_3_X) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_3_Y) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_3_Z)
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_3_X
#define Z_PROBE_ALLEN_KEY_DEPLOY_3_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_3_Y
#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_3_Z
#define Z_PROBE_ALLEN_KEY_DEPLOY_3_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE
#define Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE 0.0
#endif
const float deploy_3[] = { Z_PROBE_ALLEN_KEY_DEPLOY_3_X, Z_PROBE_ALLEN_KEY_DEPLOY_3_Y, Z_PROBE_ALLEN_KEY_DEPLOY_3_Z };
do_blocking_move_to(deploy_3, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_DEPLOY_3_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_DEPLOY_4_X) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_4_Y) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_4_Z)
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_4_X
#define Z_PROBE_ALLEN_KEY_DEPLOY_4_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_4_Y
#define Z_PROBE_ALLEN_KEY_DEPLOY_4_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_4_Z
#define Z_PROBE_ALLEN_KEY_DEPLOY_4_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_4_FEEDRATE
#define Z_PROBE_ALLEN_KEY_DEPLOY_4_FEEDRATE 0.0
#endif
const float deploy_4[] = { Z_PROBE_ALLEN_KEY_DEPLOY_4_X, Z_PROBE_ALLEN_KEY_DEPLOY_4_Y, Z_PROBE_ALLEN_KEY_DEPLOY_4_Z };
do_blocking_move_to(deploy_4, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_DEPLOY_4_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_DEPLOY_5_X) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_5_Y) || defined(Z_PROBE_ALLEN_KEY_DEPLOY_5_Z)
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_5_X
#define Z_PROBE_ALLEN_KEY_DEPLOY_5_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_5_Y
#define Z_PROBE_ALLEN_KEY_DEPLOY_5_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_5_Z
#define Z_PROBE_ALLEN_KEY_DEPLOY_5_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_DEPLOY_5_FEEDRATE
#define Z_PROBE_ALLEN_KEY_DEPLOY_5_FEEDRATE 0.0
#endif
const float deploy_5[] = { Z_PROBE_ALLEN_KEY_DEPLOY_5_X, Z_PROBE_ALLEN_KEY_DEPLOY_5_Y, Z_PROBE_ALLEN_KEY_DEPLOY_5_Z };
do_blocking_move_to(deploy_5, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_DEPLOY_5_FEEDRATE));
#endif
}
void run_stow_moves_script() {
#if defined(Z_PROBE_ALLEN_KEY_STOW_1_X) || defined(Z_PROBE_ALLEN_KEY_STOW_1_Y) || defined(Z_PROBE_ALLEN_KEY_STOW_1_Z)
#ifndef Z_PROBE_ALLEN_KEY_STOW_1_X
#define Z_PROBE_ALLEN_KEY_STOW_1_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_1_Y
#define Z_PROBE_ALLEN_KEY_STOW_1_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_1_Z
#define Z_PROBE_ALLEN_KEY_STOW_1_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE
#define Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE 0.0
#endif
const float stow_1[] = { Z_PROBE_ALLEN_KEY_STOW_1_X, Z_PROBE_ALLEN_KEY_STOW_1_Y, Z_PROBE_ALLEN_KEY_STOW_1_Z };
do_blocking_move_to(stow_1, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_STOW_1_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_STOW_2_X) || defined(Z_PROBE_ALLEN_KEY_STOW_2_Y) || defined(Z_PROBE_ALLEN_KEY_STOW_2_Z)
#ifndef Z_PROBE_ALLEN_KEY_STOW_2_X
#define Z_PROBE_ALLEN_KEY_STOW_2_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_2_Y
#define Z_PROBE_ALLEN_KEY_STOW_2_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_2_Z
#define Z_PROBE_ALLEN_KEY_STOW_2_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE
#define Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE 0.0
#endif
const float stow_2[] = { Z_PROBE_ALLEN_KEY_STOW_2_X, Z_PROBE_ALLEN_KEY_STOW_2_Y, Z_PROBE_ALLEN_KEY_STOW_2_Z };
do_blocking_move_to(stow_2, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_STOW_2_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_STOW_3_X) || defined(Z_PROBE_ALLEN_KEY_STOW_3_Y) || defined(Z_PROBE_ALLEN_KEY_STOW_3_Z)
#ifndef Z_PROBE_ALLEN_KEY_STOW_3_X
#define Z_PROBE_ALLEN_KEY_STOW_3_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_3_Y
#define Z_PROBE_ALLEN_KEY_STOW_3_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_3_Z
#define Z_PROBE_ALLEN_KEY_STOW_3_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE
#define Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE 0.0
#endif
const float stow_3[] = { Z_PROBE_ALLEN_KEY_STOW_3_X, Z_PROBE_ALLEN_KEY_STOW_3_Y, Z_PROBE_ALLEN_KEY_STOW_3_Z };
do_blocking_move_to(stow_3, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_STOW_3_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_STOW_4_X) || defined(Z_PROBE_ALLEN_KEY_STOW_4_Y) || defined(Z_PROBE_ALLEN_KEY_STOW_4_Z)
#ifndef Z_PROBE_ALLEN_KEY_STOW_4_X
#define Z_PROBE_ALLEN_KEY_STOW_4_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_4_Y
#define Z_PROBE_ALLEN_KEY_STOW_4_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_4_Z
#define Z_PROBE_ALLEN_KEY_STOW_4_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE
#define Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE 0.0
#endif
const float stow_4[] = { Z_PROBE_ALLEN_KEY_STOW_4_X, Z_PROBE_ALLEN_KEY_STOW_4_Y, Z_PROBE_ALLEN_KEY_STOW_4_Z };
do_blocking_move_to(stow_4, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_STOW_4_FEEDRATE));
#endif
#if defined(Z_PROBE_ALLEN_KEY_STOW_5_X) || defined(Z_PROBE_ALLEN_KEY_STOW_5_Y) || defined(Z_PROBE_ALLEN_KEY_STOW_5_Z)
#ifndef Z_PROBE_ALLEN_KEY_STOW_5_X
#define Z_PROBE_ALLEN_KEY_STOW_5_X current_position[X_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_5_Y
#define Z_PROBE_ALLEN_KEY_STOW_5_Y current_position[Y_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_5_Z
#define Z_PROBE_ALLEN_KEY_STOW_5_Z current_position[Z_AXIS]
#endif
#ifndef Z_PROBE_ALLEN_KEY_STOW_5_FEEDRATE
#define Z_PROBE_ALLEN_KEY_STOW_5_FEEDRATE 0.0
#endif
const float stow_5[] = { Z_PROBE_ALLEN_KEY_STOW_5_X, Z_PROBE_ALLEN_KEY_STOW_5_Y, Z_PROBE_ALLEN_KEY_STOW_5_Z };
do_blocking_move_to(stow_5, MMM_TO_MMS(Z_PROBE_ALLEN_KEY_STOW_5_FEEDRATE));
#endif
}
#endif // Z_PROBE_ALLEN_KEY
#if ENABLED(PROBING_FANS_OFF)
void fans_pause(const bool p) {
if (p != fans_paused) {
fans_paused = p;
if (p)
for (uint8_t x = 0; x < FAN_COUNT; x++) {
paused_fanSpeeds[x] = fanSpeeds[x];
fanSpeeds[x] = 0;
}
else
for (uint8_t x = 0; x < FAN_COUNT; x++)
fanSpeeds[x] = paused_fanSpeeds[x];
}
}
#endif // PROBING_FANS_OFF
#if QUIET_PROBING
void probing_pause(const bool p) {
#if ENABLED(PROBING_HEATERS_OFF)
thermalManager.pause(p);
#endif
#if ENABLED(PROBING_FANS_OFF)
fans_pause(p);
#endif
if (p) safe_delay(
#if DELAY_BEFORE_PROBING > 25
DELAY_BEFORE_PROBING
#else
25
#endif
);
}
#endif // QUIET_PROBING
#if ENABLED(BLTOUCH)
void bltouch_command(const int angle) {
MOVE_SERVO(Z_PROBE_SERVO_NR, angle); // Give the BL-Touch the command and wait
safe_delay(BLTOUCH_DELAY);
}
bool set_bltouch_deployed(const bool deploy) {
if (deploy && TEST_BLTOUCH()) { // If BL-Touch says it's triggered
bltouch_command(BLTOUCH_RESET); // try to reset it.
bltouch_command(BLTOUCH_DEPLOY); // Also needs to deploy and stow to
bltouch_command(BLTOUCH_STOW); // clear the triggered condition.
safe_delay(1500); // Wait for internal self-test to complete.
// (Measured completion time was 0.65 seconds
// after reset, deploy, and stow sequence)
if (TEST_BLTOUCH()) { // If it still claims to be triggered...
SERIAL_ERROR_START();
SERIAL_ERRORLNPGM(MSG_STOP_BLTOUCH);
stop(); // punt!
return true;
}
}
bltouch_command(deploy ? BLTOUCH_DEPLOY : BLTOUCH_STOW);
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOPAIR("set_bltouch_deployed(", deploy);
SERIAL_CHAR(')');
SERIAL_EOL();
}
#endif
return false;
}
#endif // BLTOUCH
/**
* Raise Z to a minimum height to make room for a probe to move
*/
inline void do_probe_raise(const float z_raise) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOPAIR("do_probe_raise(", z_raise);
SERIAL_CHAR(')');
SERIAL_EOL();
}
#endif
float z_dest = z_raise;
if (zprobe_zoffset < 0) z_dest -= zprobe_zoffset;
NOMORE(z_dest, Z_MAX_POS);
if (z_dest > current_position[Z_AXIS])
do_blocking_move_to_z(z_dest);
}
// returns false for ok and true for failure
bool set_probe_deployed(const bool deploy) {
// Can be extended to servo probes, if needed.
#if ENABLED(PROBE_IS_TRIGGERED_WHEN_STOWED_TEST)
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
#define _TRIGGERED_WHEN_STOWED_TEST (READ(Z_MIN_PROBE_PIN) != Z_MIN_PROBE_ENDSTOP_INVERTING)
#else
#define _TRIGGERED_WHEN_STOWED_TEST (READ(Z_MIN_PIN) != Z_MIN_ENDSTOP_INVERTING)
#endif
#endif
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
DEBUG_POS("set_probe_deployed", current_position);
SERIAL_ECHOLNPAIR("deploy: ", deploy);
}
#endif
if (endstops.z_probe_enabled == deploy) return false;
// Make room for probe to deploy (or stow)
// Fix-mounted probe should only raise for deploy
#if ENABLED(FIX_MOUNTED_PROBE)
const bool deploy_stow_condition = deploy;
#else
constexpr bool deploy_stow_condition = true;
#endif
// For beds that fall when Z is powered off only raise for trusted Z
#if ENABLED(UNKNOWN_Z_NO_RAISE)
const bool unknown_condition = TEST(axis_known_position, Z_AXIS);
#else
constexpr float unknown_condition = true;
#endif
if (deploy_stow_condition && unknown_condition)
do_probe_raise(MAX(Z_CLEARANCE_BETWEEN_PROBES, Z_CLEARANCE_DEPLOY_PROBE));
#if ENABLED(Z_PROBE_SLED) || ENABLED(Z_PROBE_ALLEN_KEY)
#if ENABLED(Z_PROBE_SLED)
#define _AUE_ARGS true, false, false
#else
#define _AUE_ARGS
#endif
if (axis_unhomed_error(_AUE_ARGS)) {
SERIAL_ERROR_START();
SERIAL_ERRORLNPGM(MSG_STOP_UNHOMED);
stop();
return true;
}
#endif
const float oldXpos = current_position[X_AXIS],
oldYpos = current_position[Y_AXIS];
#ifdef _TRIGGERED_WHEN_STOWED_TEST
// If endstop is already false, the Z probe is deployed
if (_TRIGGERED_WHEN_STOWED_TEST == deploy) { // closed after the probe specific actions.
// Would a goto be less ugly?
//while (!_TRIGGERED_WHEN_STOWED_TEST) idle(); // would offer the opportunity
// for a triggered when stowed manual probe.
if (!deploy) endstops.enable_z_probe(false); // Switch off triggered when stowed probes early
// otherwise an Allen-Key probe can't be stowed.
#endif
#if ENABLED(SOLENOID_PROBE)
#if HAS_SOLENOID_1
WRITE(SOL1_PIN, deploy);
#endif
#elif ENABLED(Z_PROBE_SLED)
dock_sled(!deploy);
#elif HAS_Z_SERVO_PROBE && DISABLED(BLTOUCH)
MOVE_SERVO(Z_PROBE_SERVO_NR, z_servo_angle[deploy ? 0 : 1]);
#elif ENABLED(Z_PROBE_ALLEN_KEY)
deploy ? run_deploy_moves_script() : run_stow_moves_script();
#endif
#ifdef _TRIGGERED_WHEN_STOWED_TEST
} // _TRIGGERED_WHEN_STOWED_TEST == deploy
if (_TRIGGERED_WHEN_STOWED_TEST == deploy) { // State hasn't changed?
if (IsRunning()) {
SERIAL_ERROR_START();
SERIAL_ERRORLNPGM("Z-Probe failed");
LCD_ALERTMESSAGEPGM("Err: ZPROBE");
}
stop();
return true;
} // _TRIGGERED_WHEN_STOWED_TEST == deploy
#endif
do_blocking_move_to(oldXpos, oldYpos, current_position[Z_AXIS]); // return to position before deploy
endstops.enable_z_probe(deploy);
return false;
}
#ifdef Z_AFTER_PROBING
// After probing move to a preferred Z position
void move_z_after_probing() {
if (current_position[Z_AXIS] != Z_AFTER_PROBING) {
do_blocking_move_to_z(Z_AFTER_PROBING);
current_position[Z_AXIS] = Z_AFTER_PROBING;
}
}
#endif
/**
* @brief Used by run_z_probe to do a single Z probe move.
*
* @param z Z destination
* @param fr_mm_s Feedrate in mm/s
* @return true to indicate an error
*/
#if HAS_HEATED_BED && ENABLED(WAIT_FOR_BED_HEATER)
const char msg_wait_for_bed_heating[25] PROGMEM = "Wait for bed heating...\n";
#endif
static bool do_probe_move(const float z, const float fr_mm_s) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS(">>> do_probe_move", current_position);
#endif
#if HAS_HEATED_BED && ENABLED(WAIT_FOR_BED_HEATER)
// Wait for bed to heat back up between probing points
if (thermalManager.isHeatingBed()) {
serialprintPGM(msg_wait_for_bed_heating);
LCD_MESSAGEPGM(MSG_BED_HEATING);
while (thermalManager.isHeatingBed()) safe_delay(200);
lcd_reset_status();
}
#endif
// Deploy BLTouch at the start of any probe
#if ENABLED(BLTOUCH)
if (set_bltouch_deployed(true)) return true;
#endif
#if QUIET_PROBING
probing_pause(true);
#endif
// Move down until probe triggered
do_blocking_move_to_z(z, fr_mm_s);
// Check to see if the probe was triggered
const bool probe_triggered = TEST(endstops.trigger_state(),
#if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN)
Z_MIN
#else
Z_MIN_PROBE
#endif
);
#if QUIET_PROBING
probing_pause(false);
#endif
// Retract BLTouch immediately after a probe if it was triggered
#if ENABLED(BLTOUCH)
if (probe_triggered && set_bltouch_deployed(false)) return true;
#endif
// Clear endstop flags
endstops.hit_on_purpose();
// Get Z where the steppers were interrupted
set_current_from_steppers_for_axis(Z_AXIS);
// Tell the planner where we actually are
SYNC_PLAN_POSITION_KINEMATIC();
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("<<< do_probe_move", current_position);
#endif
return !probe_triggered;
}
/**
* @details Used by probe_pt to do a single Z probe at the current position.
* Leaves current_position[Z_AXIS] at the height where the probe triggered.
*
* @return The raw Z position where the probe was triggered
*/
static float run_z_probe() {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS(">>> run_z_probe", current_position);
#endif
// Stop the probe before it goes too low to prevent damage.
// If Z isn't known then probe to -10mm.
const float z_probe_low_point = TEST(axis_known_position, Z_AXIS) ? -zprobe_zoffset + Z_PROBE_LOW_POINT : -10.0;
// Double-probing does a fast probe followed by a slow probe
#if MULTIPLE_PROBING == 2
// Do a first probe at the fast speed
if (do_probe_move(z_probe_low_point, MMM_TO_MMS(Z_PROBE_SPEED_FAST))) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOLNPGM("FAST Probe fail!");
DEBUG_POS("<<< run_z_probe", current_position);
}
#endif
return NAN;
}
float first_probe_z = current_position[Z_AXIS];
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPAIR("1st Probe Z:", first_probe_z);
#endif
// move up to make clearance for the probe
do_blocking_move_to_z(current_position[Z_AXIS] + Z_CLEARANCE_BETWEEN_PROBES, MMM_TO_MMS(Z_PROBE_SPEED_FAST));
#else
// If the nozzle is well over the travel height then
// move down quickly before doing the slow probe
float z = Z_CLEARANCE_DEPLOY_PROBE + 5.0;
if (zprobe_zoffset < 0) z -= zprobe_zoffset;
if (current_position[Z_AXIS] > z) {
// If we don't make it to the z position (i.e. the probe triggered), move up to make clearance for the probe
if (!do_probe_move(z, MMM_TO_MMS(Z_PROBE_SPEED_FAST)))
do_blocking_move_to_z(current_position[Z_AXIS] + Z_CLEARANCE_BETWEEN_PROBES, MMM_TO_MMS(Z_PROBE_SPEED_FAST));
}
#endif
#if MULTIPLE_PROBING > 2
float probes_total = 0;
for (uint8_t p = MULTIPLE_PROBING + 1; --p;) {
#endif
// move down slowly to find bed
if (do_probe_move(z_probe_low_point, MMM_TO_MMS(Z_PROBE_SPEED_SLOW))) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOLNPGM("SLOW Probe fail!");
DEBUG_POS("<<< run_z_probe", current_position);
}
#endif
return NAN;
}
#if MULTIPLE_PROBING > 2
probes_total += current_position[Z_AXIS];
if (p > 1) do_blocking_move_to_z(current_position[Z_AXIS] + Z_CLEARANCE_BETWEEN_PROBES, MMM_TO_MMS(Z_PROBE_SPEED_FAST));
}
#endif
#if MULTIPLE_PROBING > 2
// Return the average value of all probes
const float measured_z = probes_total * (1.0 / (MULTIPLE_PROBING));
#elif MULTIPLE_PROBING == 2
const float z2 = current_position[Z_AXIS];
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOPAIR("2nd Probe Z:", z2);
SERIAL_ECHOLNPAIR(" Discrepancy:", first_probe_z - z2);
}
#endif
// Return a weighted average of the fast and slow probes
const float measured_z = (z2 * 3.0 + first_probe_z * 2.0) * 0.2;
#else
// Return the single probe result
const float measured_z = current_position[Z_AXIS];
#endif
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("<<< run_z_probe", current_position);
#endif
return measured_z;
}
/**
* - Move to the given XY
* - Deploy the probe, if not already deployed
* - Probe the bed, get the Z position
* - Depending on the 'stow' flag
* - Stow the probe, or
* - Raise to the BETWEEN height
* - Return the probed Z position
*/
float probe_pt(const float &rx, const float &ry, const ProbePtRaise raise_after/*=PROBE_PT_NONE*/, const uint8_t verbose_level/*=0*/, const bool probe_relative/*=true*/) {
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOPAIR(">>> probe_pt(", LOGICAL_X_POSITION(rx));
SERIAL_ECHOPAIR(", ", LOGICAL_Y_POSITION(ry));
SERIAL_ECHOPAIR(", ", raise_after == PROBE_PT_RAISE ? "raise" : raise_after == PROBE_PT_STOW ? "stow" : "none");
SERIAL_ECHOPAIR(", ", int(verbose_level));
SERIAL_ECHOPAIR(", ", probe_relative ? "probe" : "nozzle");
SERIAL_ECHOLNPGM("_relative)");
DEBUG_POS("", current_position);
}
#endif
// TODO: Adapt for SCARA, where the offset rotates
float nx = rx, ny = ry;
if (probe_relative) {
if (!position_is_reachable_by_probe(rx, ry)) return NAN; // The given position is in terms of the probe
nx -= (X_PROBE_OFFSET_FROM_EXTRUDER); // Get the nozzle position
ny -= (Y_PROBE_OFFSET_FROM_EXTRUDER);
}
else if (!position_is_reachable(nx, ny)) return NAN; // The given position is in terms of the nozzle
const float nz =
#if ENABLED(DELTA)
// Move below clip height or xy move will be aborted by do_blocking_move_to
MIN(current_position[Z_AXIS], delta_clip_start_height)
#else
current_position[Z_AXIS]
#endif
;
const float old_feedrate_mm_s = feedrate_mm_s;
feedrate_mm_s = XY_PROBE_FEEDRATE_MM_S;
// Move the probe to the starting XYZ
do_blocking_move_to(nx, ny, nz);
float measured_z = NAN;
if (!DEPLOY_PROBE()) {
measured_z = run_z_probe() + zprobe_zoffset;
const bool big_raise = raise_after == PROBE_PT_BIG_RAISE;
if (big_raise || raise_after == PROBE_PT_RAISE)
do_blocking_move_to_z(current_position[Z_AXIS] + (big_raise ? 25 : Z_CLEARANCE_BETWEEN_PROBES), MMM_TO_MMS(Z_PROBE_SPEED_FAST));
else if (raise_after == PROBE_PT_STOW)
if (STOW_PROBE()) measured_z = NAN;
}
if (verbose_level > 2) {
SERIAL_PROTOCOLPGM("Bed X: ");
SERIAL_PROTOCOL_F(LOGICAL_X_POSITION(rx), 3);
SERIAL_PROTOCOLPGM(" Y: ");
SERIAL_PROTOCOL_F(LOGICAL_Y_POSITION(ry), 3);
SERIAL_PROTOCOLPGM(" Z: ");
SERIAL_PROTOCOL_F(measured_z, 3);
SERIAL_EOL();
}
feedrate_mm_s = old_feedrate_mm_s;
if (isnan(measured_z)) {
LCD_MESSAGEPGM(MSG_ERR_PROBING_FAILED);
SERIAL_ERROR_START();
SERIAL_ERRORLNPGM(MSG_ERR_PROBING_FAILED);
}
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) SERIAL_ECHOLNPGM("<<< probe_pt");
#endif
return measured_z;
}
#if HAS_Z_SERVO_PROBE
void servo_probe_init() {
/**
* Set position of Z Servo Endstop
*
* The servo might be deployed and positioned too low to stow
* when starting up the machine or rebooting the board.
* There's no way to know where the nozzle is positioned until
* homing has been done - no homing with z-probe without init!
*
*/
STOW_Z_SERVO();
}
#endif // HAS_Z_SERVO_PROBE
#endif // HAS_BED_PROBE
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