Filament Change

Hello All, Has any one enabled the filament change option using a REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER ??
I have uncommented the line as required in marlin but the option is not on my Lcd controller, any advice would be appreciated ....stevep

Yeah. Marlin, you mean?

Filament change is not very well documented.

The command shows when printing, at the bottom of the 'tune' menu.

I did this. Not saying its right but it worked for me.


config_adv.h


// Add support for experimental filament exchange support M600; requires display
//#ifdef ULTIPANEL ------------ I added the // comments to the start to make it not a condition
#define FILAMENTCHANGEENABLE --------------- I removed the // comments to enable it
#ifdef FILAMENTCHANGEENABLE
#define FILAMENTCHANGE_XPOS 3
#define FILAMENTCHANGE_YPOS 3
#define FILAMENTCHANGE_ZADD 10
#define FILAMENTCHANGE_FIRSTRETRACT -4 --------------was -2 but I needed -4 to take the pressure out of bowden
#define FILAMENTCHANGE_FINALRETRACT 4 --------------was -100 but I just pull the filament out by hand. Sometimes I don't change filament just want to pause with the head out of the way so 4 returns the filament where it started
// #define AUTO_FILAMENT_CHANGE //This extrude filament until you press the button on LCD
// #define AUTO_FILAMENT_CHANGE_LENGTH 0.04 //Extrusion length on automatic extrusion loop
// #define AUTO_FILAMENT_CHANGE_FEEDRATE 300

I got compiling faults with "extrude_min_temp" error in marlin main.cpp when I did this
so as a bodge, in

Marlin main.cpp

inline void gcode_M600() {

//if (degHotend(active_extruder) < extrude_min_temp) {
// SERIAL_ERROR_START;
// SERIAL_ERRORLNPGM(MSG_TOO_COLD_FOR_M600);
// return;
// }

Comments// added.

Ed

Thank you for the Info , i will let you know if It works........Regards.......stevep

still no option on the LCD....

Only after a print started, right at the bottom of the 'Tune' menu?

No?

Ed

Still nothing, I will need to look into it further !!!!

How annoying.

I checked again and the above are the only changes I made. That worked for 1.0.3 and 1.1.06.

Good luck with it. It is useful.