/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 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 .
*
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(PREVENT_COLD_EXTRUSION)
#include "../gcode.h"
#include "../../module/temperature.h"
/**
* M302: Allow cold extrudes, or set the minimum extrude temperature
*
* S sets the minimum extrude temperature
* P enables (1) or disables (0) cold extrusion
*
* Examples:
*
* M302 ; report current cold extrusion state
* M302 P0 ; enable cold extrusion checking
* M302 P1 ; disables cold extrusion checking
* M302 S0 ; always allow extrusion (disables checking)
* M302 S170 ; only allow extrusion above 170
* M302 S170 P1 ; set min extrude temp to 170 but leave disabled
*/
void GcodeSuite::M302() {
const bool seen_S = parser.seen('S');
if (seen_S) {
thermalManager.extrude_min_temp = parser.value_celsius();
thermalManager.allow_cold_extrude = (thermalManager.extrude_min_temp == 0);
}
if (parser.seen('P'))
thermalManager.allow_cold_extrude = (thermalManager.extrude_min_temp == 0) || parser.value_bool();
else if (!seen_S) {
// Report current state
SERIAL_ECHO_START();
SERIAL_ECHOPGM("Cold extrudes are ");
serialprintPGM(thermalManager.allow_cold_extrude ? PSTR("en") : PSTR("dis"));
SERIAL_ECHOLNPAIR("abled (min temp ", thermalManager.extrude_min_temp, "C)");
}
}
#endif // PREVENT_COLD_EXTRUSION