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133 lines
3.5 KiB
133 lines
3.5 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "../../inc/MarlinConfig.h"
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#if ENABLED(G38_PROBE_TARGET)
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#include "../gcode.h"
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#include "../../module/endstops.h"
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#include "../../module/motion.h"
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#include "../../module/stepper.h"
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#include "../../module/probe.h"
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inline void G38_single_probe(const uint8_t move_value) {
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endstops.enable(true);
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G38_move = move_value;
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prepare_line_to_destination();
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planner.synchronize();
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G38_move = 0;
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endstops.hit_on_purpose();
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set_current_from_steppers_for_axis(ALL_AXES_ENUM);
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sync_plan_position();
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}
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inline bool G38_run_probe() {
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bool G38_pass_fail = false;
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#if MULTIPLE_PROBING > 1
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// Get direction of move and retract
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xyz_float_t retract_mm;
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LOOP_LINEAR_AXES(i) {
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const float dist = destination[i] - current_position[i];
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retract_mm[i] = ABS(dist) < G38_MINIMUM_MOVE ? 0 : home_bump_mm((AxisEnum)i) * (dist > 0 ? -1 : 1);
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}
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#endif
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planner.synchronize(); // wait until the machine is idle
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// Move flag value
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#if ENABLED(G38_PROBE_AWAY)
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const uint8_t move_value = parser.subcode;
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#else
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constexpr uint8_t move_value = 1;
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#endif
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G38_did_trigger = false;
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// Move until destination reached or target hit
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G38_single_probe(move_value);
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if (G38_did_trigger) {
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G38_pass_fail = true;
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#if MULTIPLE_PROBING > 1
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// Move away by the retract distance
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destination = current_position + retract_mm;
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endstops.enable(false);
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prepare_line_to_destination();
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planner.synchronize();
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REMEMBER(fr, feedrate_mm_s, feedrate_mm_s * 0.25);
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// Bump the target more slowly
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destination -= retract_mm * 2;
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G38_single_probe(move_value);
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#endif
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}
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endstops.not_homing();
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return G38_pass_fail;
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}
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/**
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* G38 Probe Target
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*
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* G38.2 - Probe toward workpiece, stop on contact, signal error if failure
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* G38.3 - Probe toward workpiece, stop on contact
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*
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* With G38_PROBE_AWAY:
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*
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* G38.4 - Probe away from workpiece, stop on contact break, signal error if failure
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* G38.5 - Probe away from workpiece, stop on contact break
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*/
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void GcodeSuite::G38(const int8_t subcode) {
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// Get X Y Z E F
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get_destination_from_command();
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remember_feedrate_scaling_off();
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const bool error_on_fail =
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#if ENABLED(G38_PROBE_AWAY)
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!TEST(subcode, 0)
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#else
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(subcode == 2)
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#endif
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;
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// If any axis has enough movement, do the move
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LOOP_LINEAR_AXES(i)
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if (ABS(destination[i] - current_position[i]) >= G38_MINIMUM_MOVE) {
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if (!parser.seenval('F')) feedrate_mm_s = homing_feedrate((AxisEnum)i);
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// If G38.2 fails throw an error
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if (!G38_run_probe() && error_on_fail) SERIAL_ERROR_MSG("Failed to reach target");
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break;
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}
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restore_feedrate_and_scaling();
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}
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#endif // G38_PROBE_TARGET
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