print failed mid-way. how to fix it?
Hello Gurus,
Looking for help. I have Prusa Mini + .
I was printing a stl file which I downloaded from printable. it printed very nicely for 3.5 hours (i was there in room so I know till 3.5 hours it was printing well). After I came back after 5 or 6 hours i see an failed print. attached zip file haves stl , gcode file along with failed stringy mess and the part which was printing nicely before failing.
please help and guide me to understand what can i do to fix it and what things i need to look into stl/gcode before starting the printing.
ps.: i did observe small prints below 3 hours doo get printed. I see failures only when there is big prints.
Filament: eSun PLA +
bed temperature: 205
nozzle temperature: 60
RE:
First, 256 open-edges errors are in the subject.
This is probably caused by the inner rings being printed only from layer 19 onwards.
So these are printed in the air and causes the spaghetti you show.
Printables used to be a high quality printing source but in the last 18 months a great many low quality files have been uploaded; mostly because of the Prusameters reward system but partly because Thingiverse, which used to be the dumping ground, has been failing. Too many uploads have never been tested, many have never been printed and too many never could be printed.
Make it a rule to check for pictures of a successful print and to look at the comments and to be wary of designs without.
Your stl is a classic example. The inner rings do not connect to the base and are floating in mid air, very nearly an impossible print - OK, with clever supports it might be printed but then it would fall apart into seperate unconnected rings...
I found the part - a shrimp hatchery by HvL, and looked at the print pictures...
It appears that HvL *has* printed it - to do so the stl must have been split to parts and repaired in some way. I suggest you contact the designer and ask for a fix, this way the faulty stl could be repaired and replaced so that other do not run into the same issue.
Cheerio,
RE: print failed mid-way. how to fix it?
Thanks a lot for such a detailed answer.
RE: print failed mid-way. how to fix it?
Thanks for the tip and snapshot. Now atleast kniw what to look for before starting printing.
What else i should validate in stl or gcode?
If you slice then look at the gcode preview to examine the layers you will spot many potential problems. Then use the sliders - that's how to find the gaps beneath the rings where they are unsupported.
Also watch out for impossibly thin walls.
Cheerio,
RE:
@Diem I saw your message associated with the print. In the model, the inner rings are floating and appear as overhangs in the slicers (see image). A corrected version has been uploaded now. I apologize for this and thank you for your message.
... and now the designer has posted a fixed version in response to this thread. Download it and try again.
Cheerio,
RE: print failed mid-way. how to fix it?
Thanks. I will print and let you know.
RE: print failed mid-way. how to fix it?
Thanks for posting a fix. I will print it out and let you know