blob: 7f8f20a047937d8bc8579e5a996f5a365321e922 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/**
* 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 <https://www.gnu.org/licenses/>.
*
*/
/**
* Hotend Idle Timeout
* Prevent filament in the nozzle from charring and causing a critical jam.
*/
#include "../inc/MarlinConfig.h"
#if ENABLED(HOTEND_IDLE_TIMEOUT)
#include "hotend_idle.h"
#include "../gcode/gcode.h"
#include "../module/temperature.h"
#include "../module/motion.h"
#include "../lcd/marlinui.h"
extern HotendIdleProtection hotend_idle;
millis_t HotendIdleProtection::next_protect_ms = 0;
void HotendIdleProtection::check_hotends(const millis_t &ms) {
bool do_prot = false;
HOTEND_LOOP() {
if (thermalManager.degHotend(e) >= HOTEND_IDLE_MIN_TRIGGER) {
do_prot = true; break;
}
}
if (bool(next_protect_ms) != do_prot)
next_protect_ms = do_prot ? ms + hp_interval : 0;
}
void HotendIdleProtection::check_e_motion(const millis_t &ms) {
static float old_e_position = 0;
if (old_e_position != current_position.e) {
old_e_position = current_position.e; // Track filament motion
if (next_protect_ms) // If some heater is on then...
next_protect_ms = ms + hp_interval; // ...delay the timeout till later
}
}
void HotendIdleProtection::check() {
const millis_t ms = millis(); // Shared millis
check_hotends(ms); // Any hotends need protection?
check_e_motion(ms); // Motion will protect them
// Hot and not moving for too long...
if (next_protect_ms && ELAPSED(ms, next_protect_ms))
timed_out();
}
// Lower (but don't raise) hotend / bed temperatures
void HotendIdleProtection::timed_out() {
next_protect_ms = 0;
SERIAL_ECHOLNPGM("Hotend Idle Timeout");
LCD_MESSAGEPGM(MSG_HOTEND_IDLE_TIMEOUT);
HOTEND_LOOP() {
if ((HOTEND_IDLE_NOZZLE_TARGET) < thermalManager.degTargetHotend(e))
thermalManager.setTargetHotend(HOTEND_IDLE_NOZZLE_TARGET, e);
}
#if HAS_HEATED_BED
if ((HOTEND_IDLE_BED_TARGET) < thermalManager.degTargetBed())
thermalManager.setTargetBed(HOTEND_IDLE_BED_TARGET);
#endif
}
#endif // HOTEND_IDLE_TIMEOUT
|
