3DPrinting/Prusa-Firmware
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Merge pull request #1109 from mkbel/pick_ramming

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Add filament ramming when unloading filament with MMU.
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PavelSindler 2018-09-06 21:01:54 +02:00 committed by GitHub
commit e2d92a8c4e
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1 changed files with 34 additions and 4 deletions
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36
Firmware/mmu.cpp
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@ -11,6 +11,7 @@
#include "cardreader.h" #include "cardreader.h"
#include "ultralcd.h" #include "ultralcd.h"
#include "sound.h" #include "sound.h"
#include <avr/pgmspace.h>
#define CHECK_FINDA ((IS_SD_PRINTING || is_usb_printing) && (mcode_in_progress != 600) && !saved_printing && e_active()) #define CHECK_FINDA ((IS_SD_PRINTING || is_usb_printing) && (mcode_in_progress != 600) && !saved_printing && e_active())
@ -642,6 +643,37 @@ void extr_adj(int extruder) //loading filament for SNMM
#endif #endif
} }
struct E_step
{
float extrude; //!< extrude distance in mm
float feed_rate; //!< feed rate in mm/s
};
static const E_step ramming_sequence[] PROGMEM =
{
{1.0, 1000.0/60},
{1.0, 1500.0/60},
{2.0, 2000.0/60},
{1.5, 3000.0/60},
{2.5, 4000.0/60},
{-15.0, 5000.0/60},
{-14.0, 1200.0/60},
{-6.0, 600.0/60},
{10.0, 700.0/60},
{-10.0, 400.0/60},
{-50.0, 2000.0/60},
};
//! @brief Unload sequence to optimize shape of the tip of the unloaded filament
static void filament_ramming()
{
for(uint8_t i = 0; i < (sizeof(ramming_sequence)/sizeof(E_step));++i)
{
current_position[E_AXIS] += pgm_read_float(&(ramming_sequence[i].extrude));
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS],
current_position[E_AXIS], pgm_read_float(&(ramming_sequence[i].feed_rate)), active_extruder);
st_synchronize();
}
}
void extr_unload() void extr_unload()
{ //unload just current filament for multimaterial printers { //unload just current filament for multimaterial printers
@ -663,9 +695,7 @@ void extr_unload()
lcd_print(" "); lcd_print(" ");
lcd_print(mmu_extruder + 1); lcd_print(mmu_extruder + 1);
current_position[E_AXIS] -= 80; filament_ramming();
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 2500 / 60, active_extruder);
st_synchronize();
mmu_command(MMU_CMD_U0); mmu_command(MMU_CMD_U0);
// get response // get response