Bandy
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3D Prints
Posts posted by Bandy
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After many tests (guided by an UM-firmware-engineer), UM kindly asked the distributor to get in touch with me.
The distributor provided information/software so I could do a 'firmware recovery flash' (ESD-safe!). After updating to latest firmware (via USB) and recalibrating the machine, the problem didn't happen any more.
(but the printer is 'idle' again since a couple of months)
The distributor claimed it happens more often when updating firmware over wifi. (so won't do that any more...).
Since you already received a new mainboard, I guess the issue is something else. My local reseller had a couple of units with bad power supply, but these mostly 'froze' pretty early during the print-job.
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After another reset (cura connect, factory reset & FW reinstall, all after each other) the same problem persists. @Carlok suggested flashing recovery.img, but I don't want to loose warranty and the reseller insisted on returning the printer. So I'm looking forward for a message the issues were reproduced and resolved.
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another update: I did a factory reset of the printer. After 1 successfull print, I tried to 'dump logs' but the system auto-rebooted while the dumping process was still busy. I've sent some more logging to @CarloK
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Some update: In the last couple of days I had 2 strange freezes (but this time only option on the printer was 'abort print' with the head still frozen in printing position (I think with cooled extruder, but with a small blob on the partially printed part).
I've sent some logfiles over to @CarloK
I'll try to share any progress in this thread
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Thanks for the feedback, I didn't knew the copy logs to usb functionm, next time I'll dump the logs. (since I started to pay attention to the problem it didn't occur any more). Meanwhile the reseller where I bought the printer told there are 2 other customers having similar symptoms. He proposes to replace the power supply.
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Thx for the response,
Most of the time I'm printing with single extruder (also the last failure, but had same issue in past with dual extrusion-print). I don't think it's temperature, because it there is a blob on the partially printed object on the location where the head was stuck, so filament should be hot enough (at least temperature is good when I detect the failure). And I guess the printer should respond on cancel/abort/pause commands through the printer itself.
I used printing over wired LAN (currently wireless LAN), but couple of months ago I also tried to print from USB (in order to rule out network issues) and I encountered the same issues.
Since the printer is upstairs, I often have some camera feed open. But I supect that should not interfere. Once the printjob is started everything is 'onboard' and network-connection is not needed any more I guess. Although I still didn't rule out the video-feed as the possible cause.
I'll contact the dealer I bought from, meanwhile other suggestions are welcome.
Is there somewhere an option to receive notifications when a print 'freezes' (I guess some watchdog during g-code processing should be doable :-))
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Hello,
I'm looking for some help/advice. When using my UM3 the printhead just stops moving in the middle of a print job. The fans on the printhead stay on, the head keeps it's temperature, motors still on, but no movent. The display is still responsive, I can navigate and choose pause/tune/abort, however the hardware does not move. I currently do a reboot to get the printer to initial state.
I'm having the problem since a long time (1 year), but I always restarted the job, now I want more reliability to do longer print jobs.
It happens quite often, but since I'm an 'occasional' user, I lived with the issue. If I remember correctly, the issue started after a major Cura and firmware update (at that time I didn't realise it would be a repeatable long-lasting problem)
Printer firmware: 4.3.3.20180529
any help/ideas? somebody with similar issues? (Also, is there official support from ultimaker? or only community?)
Printhead freezing at random
in Firmware
Posted
Hello,
I don't know if I am allowed to publish the documents I received, but I'll try to help where possible. Please see PM