Prints curling
I have one roll of grey PLA filament that has never given a good print.
I have tried adhesive, ABS Juice and Masking tape on the build board...
most recently:
I printed a white model, no probs,
the Grey model from the same Gcode, curled up sometime after the first layer and failed miserablly
the red model printed fine too...
to the best of my ability all other parameters were the same.
the extruded filament seems poorly bonded and undersize...
so I tried raising the temperature to allow better adhesion... but got worse curling...
this grey filament has failed every time I have tried to use it! (Luckily it's only a small roll)
any ideas?
all three items printed same day, same settings...
Any ideas?
Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: Prints curling
Hi Joan
Different filament colours do print differently and require different settings due to the varying colour pigments they contain. However, in this instance I think my answer to your previous question possibly answers this one as well; filament quality and size. Only buy filaments from good manufacturers and where you find they have a consistent size in the range 1.73mm to 1.77mm diameter.
When printing PLA which does not stick properly onto glass/glue stick, I tend to use blue painter's tape from an online 3d printer supplies shop. If you get it elsewhere, there is a possibility that it will not work as well. When using tape, you should drop the bed temp to 40 degrees, otherwise the tape will come unstuck from the glass.
Peter
Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…
Re: Prints curling
Hello Joan
How long has this grey filament been open and attached to the printer? I always store my filament if not in use in a sealed plastic bag with a silica gel pack. Some UK filament suppliers supply the bags and gel with the filament. Some filaments can absorb moisture and become difficult to print. Do you hear popping sounds as the filament is extruded? If so it has gained moisture. Try putting in in an oven for a while, to dry it out. Of course set below glass temp.
Most of my PLA I print on glass coated with UHU glue stick supplied from E3D-online.com in the UK. The E3DV6 hotend company. Works well.
Other things I have tried for adhesion are BuildTak - works resonably well, but needs cleaning with isopropyl alcohol every now and then, I use that on my Fabrikator Mini 1.5. And the best so far ... PrintBite on another printer I own.
Nigel
Life is keeping interested and excited by knowledge and new things.
Re: Prints curling
In addition to what is allready told, I'm not sure that adhesion to the bed is your only issue. It seems that upper layers have issues as well, and that the extruded material is not sticking at all. Like Peter said, different colors of the same filament may need different parameters.
Since you already tried to increase temperature, I would test increasing extrusion factor by 10 or 20 % on a small test object, like this one: http://www.thingiverse.com/thing:30171
On Slic3r, this is the "Extrusion multiplier" setting, located on "Filament Settings" tab. By default, the value is 1. Try 1.1 or 1.2. And save this filament settings as a new filament.
I'm like Jon Snow, I know nothing.