I had talked to tech support awhile back and they tried to blame it on bad SD, bad USB, bad power, bad gcode from a bad model.
yea thats bs, because i have never printed with the sd card, im still using same usb that came with the printer, and the same print that stops i can try to reprint and it will work. bad gcode could def cause the issue but wouldnt explain why it stop once then printer another time. I would also think that usb ports with lower speeds could have something to do with it like a non 3.0 usb port but the ports i use are 3.0 ports so yea. this so far has not created any real issue other than a little wasted plastic but i was more concerned with what happens if it starts happening more frequently. Its only done it to me about a total of 5 times over the 4 years but all 5 times has been in the last few months
If you are printing via USB, and the prints pause and stop, it’s almost certanly your computer that is the issue. It’s slightly possible that this is an overheating issue of the control box. but it’s usually the host computer. You want to make sure the host computer is set to “high performance” under power settings in control panel, and “USB Selective Suspend” is set to disabled under advanced power options for the High Performance setting. Otherwise your USB ports can go to sleep if the computer is unattended for long periods of time. The Arduino IDE doesn’t always sucessfully manage to transmit a port “keep alive” signal during serial communications, so it can sometimes let the ports go idle if no one else is attending the computer at the time. Screen saver is also the enemy, disable it.
If you have all those things set already, you will want to look at other settings. Do you have enough Ram and processor overhead? Is your video card getting bogged down rendering the model progress. Do you have a virus that is transmitting things at intermittant intervals, which is bogging the computer down, etc.
This is something I will def be checking out thanks for this reply as it may e helpful
This has happened a few more times. We have four TAZ 5’s in our Makerspace, several have done it, all printing different files from different SD cards. Not from computer over USB.
How frequently are the SD cards used.? It is possible for the cells in them to go bad over time. Also if you have multiple taz units running at the same time, are you sure you are getting sufficient power? A momentary bracket bobble would have the same effect. Are the printers just freezing, or are they rebooting?
Printers just stop. Maintain temperature. Controls responsive. No error message. Have replaced some sd cards, but still occurs. Rare and intermittent, so who can say.
Others in thread experience same thing while printing over usb. The cord and the computer are blamed. Power fluctuations are also blamed, but interesting that only the LulzBots are affected. No other devices in the lab show indications of power problems.
So I come bank to the printer itself.
New observation on an old problem. In the past this has been blamed on everything from bad sd card, usb cable, power fluctiontions, etc. Everything short of phase of the moon. Quick summary – I’ve gotten new sd cards, don’t print via usb, got ups backups, yet we’ve continued to have these rare, intermittent problems on multiple machines.
A student recently observed that in two cases were the machine stopped printing, the SD Card physically came loose. The LCD display did not show a card to be present until the student pushed it further in.
Has anyone heard of such a thing? The cards are what came with the machine, but I did replace one as a test and had another stop. So I don’t think it’s the brand.
I had this problem recently. My Taz 5 stopped about 95% into 35 hour prints. Was really frustrating because the prints were awesome up to that point. I read the posts here and for me it turned out to be the SD card. I didn’t reformat the one sent with the machine, but went with a new card. Have had a couple of 30+ hour prints since that went off without a hitch.