the object i was printing was an Apple Watch charging dock. The Chac Mool one from MyMiniFactory. I've tried printing it 4 separate times. each time the print just stops. Initially i thought it was getting stuck. But having just witnessed the stopping. i now know that is not the case. the printer freezes. it claims the hotend and bed are still at printing temp though they are cooling and soon cool to touch. i have tried shutting down and resuming print but the carriage locates incorrectly and lowers too far crashing into the print and dislodges it from the bed. seems to happen after the 3-4 hours of printing mark.
anyone have any ideas. this is really becoming frustrating. i'm going to try another long print. i seem to remember it happening on another but not positive so i will try it to be sure its not the file.
Bueller, Bueller...
anyway continues to happen, no matter the file or slicing software. after about 2 1/2 hours now of printing it freezes. i'vegotthe printer hanging over an edge with a fan directed at the underside. hoping it would help if it was freezing due to an over heating issue. but no avail. the problem persists.
any help here would be great. or someway to start troubleshooting the problem.
thanks in advance
1. Does printing stop at the exact same spot each time?
Yes - Likely a gcode issue, try copying the gcode to the SD card with a different computer/SD card reader/writer.
No - Printer firmware or touchscreen firmware issue.
2. Are you printing via octoprint?
Yes - Try disconnecting the touch screen, it might be causing a conflict.
3. Do you have a computer connected whilst printing?
Yes - Disconnect from the computer.
Things you can try:
1. Using a different SD card/formatting the SD card to a smaller file size.
2. Disconnecting the touchscreen and printing via Octoprint only or via a wired computer connection.
#Makertech
1: no it doesn't stop at the the same spot each time. i've tried it on the same file and its stopped at 4 different stages of the print. max i've got was around 80% with the lowest being around 17%.
2: no i have not setup my octoprint yet. been trying to work out the bugs before i add another thing to the printer.
3: i've tried it whilst both connected and disconnected. with each stopping at different points.
i will try printing with the touchscreen disconnected as i haven't tried that yet.
as well as trying a different SD card as the only one i've been using is the one supplied.
which formatted file structures are you wanting me to try
well i've loosened the guide wheels on both the platform and the carriage. initially they came loose. so i tighten them. but the platform i'm sure i over tightened. so now i went through tightened the wheels just enough that they engage the extruded aluminum. both are traveling more freely.
but i do not know if this fixed my problem. since my switching servo died on me and i flat out refuse to disassemble the carriage for a second time to put the single hotend back together for a third time to disassemble it for a third time to reassemble it for a third time when my replacement servo shows up. plus a lead on one of the a parts fan has already broken off from the multiple re/dis/assemblies i've performed.
Mine is doing the same, a couple different files all stop around an hour and a half to two hours into printing. Same symptoms
I've had this happen a few times, although I'm also getting a lot of 20+ hour prints going fine too when things work. Two microSD cards, two different microSD to SD adapters and a fullsized SD card, all verified with h2testw for capacity and write/read errors. Restarting the printer after one of these freezes puts the progress back at 0% so 'resume' starts from the beginning of the print with bed leveling. The last time it happened I just removed and reinserted the SD card into the touchscreen reader after restarting the printer and on the reprint it went without a problem. Is there a way to add something like simple MD5/CRC integrity checks to the gcode files in the firmware/printer interface to make sure it isn't corrupted before loading? I already do it on my computer when transferring the files to the SD cards, but there's clearly another point of failure on reading the file back on the printer.
well i was able to pull off a 6.5 hour print without it stopping. to it would seem i had the guide wheels causing too much friction from them being adjusted too tightly against the 2020 extruded aluminum. the only issue i had was a layer shift early on. pretty sure its an unrelated issue.