Annoying Prusament Material Inconsistencies OR What?
I have printed with quite a variety Prusament colors in both PLA and PETG. The vast majority of it looks and works great. Not having to deal with out of tolerance diameters has made 3D printing more enjoyable on my MK2.5S. However, I have a spool of Opal Green PLA and a spool of Neon Green transparent PETG that are driving me crazy. They complete a 4 hour print about 25% of the time. 75% of the prints in either of those colors get the famous "click of death" at a random time during the print. If I switch to another color and start a new print, it completes successfully. Is there something about the green colorant?? The reason I believe this is a material issue is that when I unload the filament, the end has several strings (not just one) and most of them are not colored (clear). I have attached a picture. Only one of the two colors I am having problems with has glitter.
I have attempted to eliminate other potential causes for this condition, nozzle, heat break, and temperature, but it is still happening with these two spools. Any suggestions other then tossing them in the bin?
RE: Annoying Prusament Material Inconsistencies OR What?
Hi,
having similar problem. filament gets stuck in pretty much the same Z position of the print... which is approx 8.6mm.
tried to slice the print dizerently to decrease the flow values, different temperatures, different tension for the filament feeder... only thing I can think of is a lot of zigzag movement at that point of print causing some vibrations and possibly cutting of power for the hotend...
I have some 3 filaments acting similar. looks like the hotend tends to cool down at the point getting the filament stuck. mine gets similar lump at the end.
RE: Annoying Prusament Material Inconsistencies OR What?
OK. Update on my trouble. Managed to run one of the troublemaking filaments by decreasing print speed (approx -10percent) and reducing flow (not higher than 6 mm3 per min) rates by tampering with extrusion width on the Prusa Slicer.
Now testing other trouble filaments I was having trouble with. All of those were generic SILK PLA.
Was wathcing the temperatures for dropdowns, never happened. rising or lowering hotend temperature did not help.
My gues is that those filaments tend to expand at the hotend this way clogging the nozzle, similar to cold extrusion effect.
Going to update if there is something more...
RE: Annoying Prusament Material Inconsistencies OR What?
The result of dissatisfaction with other companies' filaments on the market and the attempt to better them.
RE: Annoying Prusament Material Inconsistencies OR What?
It's somewhat known that colorants can mess with filament properties appreciably; I've read reports of folks that grind and reextrude their scrap noticing that while they can get consistent results with a given material and color, as soon as they mix multiple colors of scrap, they start getting significantly more variation in the extruded filament.