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Chris
(@chris-16)
Reputable Member
crash recovery bug

I have been trying and failing to print a hinged box with some esun pet-g. and i noticed something about the crash detection. If it fails 4 times in the same spot (apparently that is the limit) it just parks over the top of a part of the print and shuts off the nozzle/extruder. NO error message is displayed or if it is it must be momentary, because it is back on the normal screen when i come to look at it in the morning.

two examples, in the yellow circle is the problem that causes the crash and in red is the spot it just parked and shut off.

what i would expect is that rather than parking over the top of the print it would raise the extruder and move to the back as it does when it finishes a print and it would pin the failure message requiring a click to dismiss

ps thanks in advance for the printing tips. I have reduced flow to 82%, reduced speed to 30, made infill 75%, doesn't seem to matter, it drops boogers on the print and then they harden and kill the print. I have babysat the print for up to 10 hours (the larger one) scraping off any boogers that get dropped but i gotta sleep sometime.

pps the print is a borg cube hinged box with a magnet latch. it is for a geocache. when i finally get a successful print (ltrying abs now) it will be on thingiverse.

Posted : 25/12/2017 7:52 pm
MrMik
(@mrmik)
Honorable Member
Re: crash recovery bug

Use a silicone sock on the extruder.
I think these blobs are created by all those stringy bits touching the hotend and melting onto it, until they are large enough to drop on your print. That's why they are brownish-roasted, they spent much time on the hotend.

Posted : 26/12/2017 2:48 am
MrMik
(@mrmik)
Honorable Member
Re: crash recovery bug

You can also reduce the nozzle temp to reduce the stringing, and reduce the fan speed to blow less filament into thin strings.
But with lower temperature, the strength might be reduced.

Posted : 26/12/2017 2:50 am
Chris
(@chris-16)
Reputable Member
Topic starter answered:
Re: crash recovery bug


You can also reduce the nozzle temp to reduce the stringing, and reduce the fan speed to blow less filament into thin strings.
But with lower temperature, the strength might be reduced.

with petg the only time for fan is first layer of bridging. otherwise the layers don't bond

Posted : 26/12/2017 5:31 am
Chris
(@chris-16)
Reputable Member
Topic starter answered:
Re: crash recovery bug


Use a silicone sock on the extruder.
I think these blobs are created by all those stringy bits touching the hotend and melting onto it, until they are large enough to drop on your print. That's why they are brownish-roasted, they spent much time on the hotend.

already done 🙂 it builds up on the nozzle. That bead with the impression of the nozzle in it is the buildup on the nozzle alone.
I like the silicon sock mainly for keeping an even temp and keeping the block clean.

Posted : 26/12/2017 5:36 am
MrMik
(@mrmik)
Honorable Member
Re: crash recovery bug

That's the newer version of the sock, the old ones had a much smaller hole.

Why do you use Petg for the print?

Posted : 26/12/2017 5:58 am
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