Failure on first large print
Hello friends. After having some nice results with smaller prints (2 of them my own design) I tried borrowing a concept of a print on the Prusa page, but designing it myself, on a larger scale.
It was a 14 hour print. So I printed a 1/3 sale prototype first, and it looked as if it printed well (This was a 6 hour print and I stopped it before it completed, because it looked so good.) I went to the fulls cale model, spliced it and started printing. After 3 hours it was looking great so I went to bed. However, when i got up in the morning, I saw I had a crash. When I looked at the print, I could see that the base had warped on both sides (see photos). I think the nozzle made contact with the walls as a result of the warpage, resulting in the crash. (I printed with the top (broad base) on the build plate)
Does anyone have any ideas on why it would warp? I kept all Slicer default setting for PLA material, except I went with rectilinear infill instead of gyro. Hopefully someone can make sense of the photos!. Thanks all.
Yes that partially detached; long prints do have a tendency to warp and there are strategies to reduce this but first make sure there are no drafts or sharp air temperature changes and get the print sheet scrupulously clean.
Cheerio,
RE: Failure on first large print
After posting my question, a thought occurred to me and I went back to the printer. And I found the problem! The filament had jammed on the spool! The filament to the extruded had somehow become tightly jammed under other loops on the spool. After unloading the filament, I actually had to get a pair of long nosed pliers to push the end back through these loops. It was really jammed in there solidly! I looked at the fail log and I had an x-axis crash. And I figured that when the spool/filament had jammed, it prevented x-axis travel.
I noticed somewhat of a tendency for this to happen on my smaller prints. However, as they were only 2 hour prints, I was there frequently, and I noticed a little jamming on the spool. At this time, I just manually pulled some filament clear, and it wasn’t a problem. However, when I left this 14 hour print to do it’s thing, I wasn’t there to notice, and untangle the filament. Has anybody had this happen to them? It’s the original Prusament PLA (silver) filament that came with the printer.