Is there such a thing as a "bad batch" of filament?
Hello -
Pretty much the only filament I use is Overture because it is easy to get (Amazon) and I have had good results from it. I primarily buy PLA+ but I also buy PETG if the price is right. I have never had any issues printing with either except for a spool I bought recently. It is a white Overture PETG and and I have not changed any settings on PrusaSlicer other than perhaps the infill pct which is set to 15. I've tried to print several Gridfinity boxes with this particular spool and pretty much all have failed with a "filament stuck" error. Then, the plate stops, and nothing prints. Tried to unjam by unloading/re-loading the filament but the error only happens again.
Since the printer works flawlessly with any of the other spools, I am wondering if this is a bad spool. I have made sure there is not a knot or kink in the spool already. The filament does not appear to be binding in any form. I have also printed (using a spool that works) two rings to fill the hole in the cardboard spool - https://www.printables.com/make/1778448 - and that did not help.
Has anyone had any issue like this? I hate to waste a brand new spool - just wondering what you might suggest...
thanks!
RE: Is there such a thing as a "bad batch" of filament?
I've had similar problems with a spool of Prusament. Overnight in the dry sought it out
RE: Is there such a thing as a "bad batch" of filament?
I believe there can be a bad roll, but rare from better suppliers. I have used overture also. Some things to check.
When it shows stuck filament, has it stopped extruding? If not you could try turning off the warning and see if it works without problems. I think this error is driven by load on the extruder motor.
As alway make sure it is dry. If you bend it and it breaks easily, this is usually a sign of excess moisture. Even Prusa states that new filament should be dried before use now. Is there a date on the filament? How old is it.
I have experienced different colors acting differently, but not a dramatic difference.
I have found the model details may add to problems. I had rivet details on a bridge that repeated hundreds of times on a layer. Miniscule amonut of filament per rivet with hundreds of retracts with near zero net advance. It wore a hole in the filament so it wouldn't feed. It failed repeatedly, but not at the same spot. I had to lighten the tension on the filament to get this one to work. Just a 1/2 turn looser made a difference in my case. I have had other prints with many small details that had similar problems.
I would like a density guarantee on filament along with a diameter guarantee. Haven't seen one yet.
Bad batches are rare these days and will normally be caught by QC before leaving the factory. Commoner are spoiled spools which have not been stored well somewhere in the supply chain - never buy the shop display spool that has been exposed to UV light and atmospheric moisture for months...
White filament is usually the most troublesome in any filament line, it contains so much pigment that it may even have non newtonian flow characteristics - Make certain it is dry, perhaps print 5° - 10° hotter and if problems contiinue avoid using it with highly detailed prints.
Cheerio,