Help with SD-Pause position and behavior

JClark · January 2018

When I choose pause during an SD print, the head moves to a position that is outside its range (opposite from home position) & hits the end of travel (violently). I always print from SD, just seems to work best for us.

Can I adjust this behavior? I'd like it to do something like the filament change, where it returns X&Y to home position, and drops the bed 10mm. Obviously it should return to the correct position when resuming the print as well.

Thanks in advance, these forums have helped me a great deal on this journey.

I fixed this once before on 0.92, but since updating to Dev version 1.0.1 it behaves strangely again. I cannot find my previous configuration.h to compare to.

Running on Arduino Mega/RAMPS 1.4, Core X-Y mechanics, firmware Dev 1.0.1.

Machine has been in heavy use for about a year before changing the firmware level yesterday. FWIW, importing the previous configuration.h into the web config tool did not work very well, lots of previously defined settings were dropped.

Repetier · January 2018

You need to make changes ALWAYS in config tool or reoeneing config will not see your changes. They are read from the comment section at the end!

Pause from sd is in SDcard.cpp

void SDCard::pausePrint(bool intern)
	{
	if(!sdactive) return;
	sdmode = 2; // finish running line
	Printer::setMenuMode(MENU_MODE_PAUSED, true);
	#if !defined(DISABLE_PRINTMODE_ON_PAUSE) \|\| DISABLE_PRINTMODE_ON_PAUSE==1
	Printer::setPrinting(false);
	#endif
	#if NEW_COMMUNICATION
	GCodeSource::removeSource(&sdSource);
	#endif
	if(EVENT_SD_PAUSE_START(intern)) {
	if(intern) {
	Commands::waitUntilEndOfAllBuffers();
	//sdmode = 0; // why ?
	Printer::MemoryPosition();
	Printer::moveToReal(IGNORE_COORDINATE, IGNORE_COORDINATE, IGNORE_COORDINATE,
	Printer::memoryE - RETRACT_ON_PAUSE,
	Printer::maxFeedrate[E_AXIS] / 2);
	#ifdef CNC_SAFE_Z
	if(Printer::mode == PRINTER_MODE_CNC) {
	Printer::moveToReal(IGNORE_COORDINATE, IGNORE_COORDINATE, CNC_SAFE_Z - Printer::coordinateOffset[Z_AXIS], IGNORE_COORDINATE, Printer::maxFeedrate[Z_AXIS]);
	}
	#endif
	#if DRIVE_SYSTEM == DELTA
	Printer::moveToReal(0, 0.9 * EEPROM::deltaMaxRadius(), IGNORE_COORDINATE, IGNORE_COORDINATE, Printer::maxFeedrate[X_AXIS]);
	#else
	Printer::moveToReal(Printer::xMin, Printer::yMin + Printer::yLength, IGNORE_COORDINATE, IGNORE_COORDINATE, Printer::maxFeedrate[X_AXIS]);
	#endif
	Printer::lastCmdPos[X_AXIS] = Printer::currentPosition[X_AXIS];
	Printer::lastCmdPos[Y_AXIS] = Printer::currentPosition[Y_AXIS];
	Printer::lastCmdPos[Z_AXIS] = Printer::currentPosition[Z_AXIS];
	GCode::executeFString(PSTR(PAUSE_START_COMMANDS));
	}
	}
	EVENT_SD_PAUSE_END(intern);
	}

You see pause position is xmin, ymin+ ylength

If that goes outside allowed area you seem to have ylength set too high.

allen_g30 · February 2018

Hello
I have the same problem. when I pause (print from sdcard), the head moves back on the y-axis and strikes badly in the belt.
below the configuration in sdcard.cpp

void SDCard::pausePrint(bool intern)
{
    if(!sd.sdactive) return;
    sdmode = 2; // finish running line
    Printer::setMenuMode(MENU_MODE_SD_PAUSED, true);
    if(intern) {
        Commands::waitUntilEndOfAllBuffers();
        sdmode = 0;
        Printer::MemoryPosition();
        Printer::moveToReal(IGNORE_COORDINATE, IGNORE_COORDINATE, IGNORE_COORDINATE,
                            Printer::memoryE - RETRACT_ON_PAUSE,
                            Printer::maxFeedrate[E_AXIS] / 2);
#if DRIVE_SYSTEM == DELTA
        Printer::moveToReal(0, 0.9 * EEPROM::deltaMaxRadius(), IGNORE_COORDINATE, IGNORE_COORDINATE, Printer::maxFeedrate[X_AXIS]);
#else
        Printer::moveToReal(Printer::xMin, Printer::yMin + Printer::yLength, IGNORE_COORDINATE, IGNORE_COORDINATE, Printer::maxFeedrate[X_AXIS]);
#endif
        Printer::lastCmdPos[X_AXIS] = Printer::currentPosition[X_AXIS];
        Printer::lastCmdPos[Y_AXIS] = Printer::currentPosition[Y_AXIS];
        Printer::lastCmdPos[Z_AXIS] = Printer::currentPosition[Z_AXIS];
        GCode::executeFString(PSTR(PAUSE_START_COMMANDS));
    }
}

any help?
tks in advance

Repetier · February 2018

Enter better pause position in moveToReal that makes no problem.

Help with SD-Pause position and behavior

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