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.
Just had the same issue... At 32% on a 1h17 print, the printer just stops completely.
I pressed "options" and tried "pause", which make the touchpanel freeze up.
Then I turned the printer off and back on, which brought it back to the "pause" screen.
I pressed resume, at which point the printer started heating up the hotend and board and then it dug itself into the print bed... seems "resume" is not the right approach.
We're looking into trying to recreate this issue as it sounds like it could be either temperature control related or touch screen firmware related. Hope to have software updates out soon to hopefully resolve the issue.
I'll try a few times more with the same GCode and if it keeps failing, will send you the file
@Peter Vanderborght If it's freezing at 32% each time it might be a corrupt file, if you can try to write the gcode onto the sd card with a different pc/adapter. The email to send the gcode to is info@makertech3d.com.
@Makertech I tried another print last night, stopped at 41%. Started a new one this morning and my wife just reported it hangs at 72%. I will send the GCode when I get home tonight and will flash a single hotend firmware over the weekend to give that a try (since I haven't replaced my servo yet, I effectively have a single hotend anyway ;-) ) To be continued...
I'm getting this issue too with my DSE. Specifically, I'm attempting to print something with supports using PVA as the support material. It seems to freeze after switching back to the main material the first time. It prints the raft, and the first layer of both materials, then freezes. I've tried re-making the file on my SD card to make sure the file didn't get corrupted somewhere several times to no avail.
Same here, i'm experiencing random freezes, let's say 1 out of 6, different gcodes and at different stages. When it happens, it's impossible to quit/resume, pause/resume or do anything else other than power off/on and restart the print. Seems like a software crash.
I've now gotten a freeze at the same point on a previously working gcode(a temperature tower) left on the sd card several times since I switched filament rolls(same brand). Tried another SD Card and verified the gcode checksum, no other changes. Currently running single extruder and single firmware, so it's not explicitly a DSE thing. Restarting the print after a power cycle begins from 0% and either does Home All and bed leveling again, or goes back to printing dozens of layers above where it crashed out, extruding filament into thin air.
For the record: using Octoprint zero hangs/freezes.