You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.1 KiB
92 lines
3.1 KiB
/**
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
#include "../inc/MarlinConfig.h"
|
|
|
|
#if ENABLED(MIXING_EXTRUDER)
|
|
|
|
#if ENABLED(DIRECT_MIXING_IN_G1)
|
|
#include "../gcode/parser.h"
|
|
#endif
|
|
|
|
float mixing_factor[MIXING_STEPPERS]; // Reciprocal of mix proportion. 0.0 = off, otherwise >= 1.0.
|
|
|
|
#if MIXING_VIRTUAL_TOOLS > 1
|
|
|
|
float mixing_virtual_tool_mix[MIXING_VIRTUAL_TOOLS][MIXING_STEPPERS];
|
|
|
|
void mixing_tools_init() {
|
|
// Virtual Tools 0, 1, 2, 3 = Filament 1, 2, 3, 4, etc.
|
|
for (uint8_t t = 0; t < MIXING_VIRTUAL_TOOLS && t < MIXING_STEPPERS; t++)
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
|
|
mixing_virtual_tool_mix[t][i] = (t == i) ? 1.0 : 0.0;
|
|
|
|
// Remaining virtual tools are 100% filament 1
|
|
#if MIXING_STEPPERS < MIXING_VIRTUAL_TOOLS
|
|
for (uint8_t t = MIXING_STEPPERS; t < MIXING_VIRTUAL_TOOLS; t++)
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
|
|
mixing_virtual_tool_mix[t][i] = (i == 0) ? 1.0 : 0.0;
|
|
#endif
|
|
|
|
// Initialize mixing to tool 0 color
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
|
|
mixing_factor[i] = mixing_virtual_tool_mix[0][i];
|
|
}
|
|
|
|
#endif // MIXING_VIRTUAL_TOOLS > 1
|
|
|
|
void normalize_mix() {
|
|
float mix_total = 0.0;
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++) mix_total += RECIPROCAL(mixing_factor[i]);
|
|
// Scale all values if they don't add up to ~1.0
|
|
if (!NEAR(mix_total, 1.0)) {
|
|
SERIAL_PROTOCOLLNPGM("Warning: Mix factors must add up to 1.0. Scaling.");
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++) mixing_factor[i] *= mix_total;
|
|
}
|
|
}
|
|
|
|
#if ENABLED(DIRECT_MIXING_IN_G1)
|
|
// Get mixing parameters from the GCode
|
|
// The total "must" be 1.0 (but it will be normalized)
|
|
// If no mix factors are given, the old mix is preserved
|
|
void gcode_get_mix() {
|
|
const char mixing_codes[] = { 'A', 'B', 'C', 'D', 'H', 'I' };
|
|
byte mix_bits = 0;
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++) {
|
|
if (parser.seenval(mixing_codes[i])) {
|
|
SBI(mix_bits, i);
|
|
float v = parser.value_float();
|
|
NOLESS(v, 0.0);
|
|
mixing_factor[i] = RECIPROCAL(v);
|
|
}
|
|
}
|
|
// If any mixing factors were included, clear the rest
|
|
// If none were included, preserve the last mix
|
|
if (mix_bits) {
|
|
for (uint8_t i = 0; i < MIXING_STEPPERS; i++)
|
|
if (!TEST(mix_bits, i)) mixing_factor[i] = 0.0;
|
|
normalize_mix();
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#endif // MIXING_EXTRUDER
|
|
|