I believe the issue I'm having is firmware related, but I decided to open a new thread.
During prints, everything will be going great until near the end (usually the last 5-30 min depending on layer, and size of print). Randomly, the printer will turn the nozzle off, but continue to try and print until it reaches a "Temp too low", and it will pause. When trying to resume the print, it will acknowledge the preheat, but will not heat up, and cause a "Heater Fail", which in turn forces me to reset the printer, cancelling the print. I've checked extruder settings, printer settings, and the gcode of all the slices, and have come up with nothing. With this in mind, this only seems to happen when I am trying to print with multiple extruders (2 or 3). If I print with a single extruder, I do not have any issues. That being said, I have to use EX0 to print in one color, and not EX1 or EX2, otherwise the same thing happens. This is what leads me to believe that it is a firmware issue.
Other issues I have been having include printer resets when trying to click on the "color mixer" option of the LCD screen. The current firmware I am using is the (Firmware For A10T(GT2560 V4.0 support 3d touch)). The other firmware that does not have BLtouch support has never given me any issues.
Curious if anyone else has had issues and/or have heard of these issues. I Have not heard back from Geeetech yet (2 weeks now), so I'm hoping there is some sort of solution out there, other than going back to the original firmware without the BLtouch.
Check your gcode in text editor it there are not binary blocks.
Possibly it could be EMC problem, so there are one easy half- and one full solution.
1. add 100nF capacitor to print head PCB. You need to find where are termistor connector
2. It is schematic for MCU direct input, not for input at cable side on mainboard
I will feed this information back to the engineer,
This issue will be resolved as soon as possible.
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I also only print with an SD card, so no, this is not confined to PC printing. I have tried PC printing as well, but it does not seem to matter. As far as G.codes go, there doesn't seem to be anything listed that would cause this error. I have found that this does not happen with all models, only some. I also started changing scale size to anything but a 100% scale and I have not had any issue since (coincidence?). But I do agree there might be a timeout issue. I Ran out of filament which the sensor detected and paused, but when I went to reheat the end, it timed out and caused a "heater error", which ended up cancelling the print (pretty useless to have a filament detector if this continues to happen). I guess I may just have to go back to the firmware without BL touch as I never had any of these issues with the original firmware. would be nice if Geeetech had opensource firmware. I know ive seen marlin files for some geeetech printers, may just have to try and get my hands on them and go through the codes to see if anything stands out...
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