Prusament Pristine White PLA
Hi ther,
Wanted to know if I'm alone on this, I'm having issues printing with Prusament PLA Pristine White, tried 2 different spools, dried out, but can't get it to print. Works fine with other PLA filament, Prusament, Prusament Blend, generic PLA.
I tried to play with filament settings on nozzle and bed heat as well as with modifiers but nothing yet did the trick. It 'worked' until recently, sometimes with small issues, but the firs layer perimeter won't stick and usually the first layer is not so good, if it even prints. Can that be related to this specifi PLA density ? quality ? or April FW update ? I'm puzzeled, my MK4 always prints perfectly well except with this filament. If anyone has a hint, I attached a picture of an example, there the first perimeter was a real mess and first layer bad. Any experience sharing would be highly appreciated. As this printer works so well I'm not very experienced with tweaking it yet so forgive me if I haven't tried everything before posting this.
RE: Prusament Pristine White PLA
It now seems clear to me that this filament type is just the tip of the iceberg, tried 3 other PLAs I have and it seems it overall degraded, some still print well and others are starting to have issues on first layer, wondering if a component may be defective, tried another Smooth PEI sheet (newer), works a bit better but still not as it used to be, starts to be a gamble. Should I replace Nozzle ? Sensor ?
RE: Prusament Pristine White PLA
I've run a few prints so far on my MK4S and my Core One using my only spool of pristine white without issue. From your picture it looks like a bed adhesion issue. If it were me, I'd take the print sheet to the sink and wash it in warm water with dish soap. If that didn't help I've check the heatbed to make sure it's heating properly. I'd also check to make sure the nozzle isn't loose and doesn't have anything stuck on the outside.
RE: Prusament Pristine White PLA
Try printing on glass, Works for me.
Good adhesion and mirror finish.
Leave PLA on the glass at least 1 hour for cooling don ; depending on the surface area of the print, you will here the plastic separating from the glass.
I got so tired with non adhesion problems with the flexible steel sheets, and was a waste of good filament and money.
RE: Prusament Pristine White PLA
Forgot to add, the glass I use is borosilicate, 2.5 mm thick, normally available from your glass shop. used in double glazing of windows.
I think @darkmattermaker has the right idea, there are patterns to the error that suggest fingerprints so you may have transferred something that defeats your usual cleaning, look up threads here about print-sheet cleaning.
White and pastel filaments are always tricky to print and are more sensitive to issues that are not severe enough to affect black or natural colours. There is so much pigment in white that the molten plastic flows differently, it can pay to slow down the first layer to help it stick. White is also more likely to leave residues that mean that cleaning before the next print becomes more important.
Cheerio,
RE: Prusament Pristine White PLA
Thanks for this insight, I understand now if the adhesion is getting generally down, it will be even more impacting on white, I will conduct more tests
RE: Prusament Pristine White PLA
Nice advice, and did that, helped a bit, and is probably one of the reason, but must be more profound, probably a mix of several things. Ran all the tests (heat, sensors, axis, all passed fine, and temperature is up to where it should be. The weird thing is that all that started 2 weeks ago, without really an environment change, excep firmware and Prusasclicer configs. Before that it was almost perfect; a bit puzzeled, maybe one of the components that if failing (nozzle or Loadcell?), I will try to go back to a previous FW, just to make sure it had no impact, but not too confident on that 🤔.
PS: By the way, thinking of CoreOne as a future replacement, how does it compare to your MK4S in terms of reliability ?
I've run a few prints so far on my MK4S and my Core One using my only spool of pristine white without issue. From your picture it looks like a bed adhesion issue. If it were me, I'd take the print sheet to the sink and wash it in warm water with dish soap. If that didn't help I've check the heatbed to make sure it's heating properly. I'd also check to make sure the nozzle isn't loose and doesn't have anything stuck on the outside.
RE: Prusament Pristine White PLA
Thanks, Glass is a good idea, the thing is I'd like to stick with the easiness of these PEI sheets, quicker to remove prints and easier to handle
Forgot to add, the glass I use is borosilicate, 2.5 mm thick, normally available from your glass shop. used in double glazing of windows.
The weird thing is that all that started 2 weeks ago,
So think back, what were you using then that might have got onto your fingers and been transferred ... we're looking for something that doesn't respond to your usual cleaning regimes ... what cleans that?
Cheerio,