Original BL PLA matte profile. 0.12mm fine.
All calibrations carried out.
Printer processed about 3kg in total.
Textured PEI cleaned with soap and sponge.
The filament is new, or rather the first 300g were printed without any problems. It is also in an airtight container with silica (RH 20%)
Standard setting for the PLA matte (BL specifications).
The A1 Mini is in a housing with a constant 25 degrees (monitored)
This time with 3DJAKE Eco PLA (specified values). Almost half of this roll has already been printed without any problems (with identical settings).
0.16mm, 20% infill, straight.
I checked the extruder. Visually, the rolls look perfectly aligned.
All screws have been tightened a little, including on the heating element.
I just did a cold pull…I noticed minimal black residue (more like discoloration) on the gray PLA. Then I went through it again with the needle provided and felt a small resistance which then decreased after 2-3 times…
Unfortunately that wasn’t it either, here is the new test print.
This time I waited for layer 3, but the “tearing” starts from the 2nd layer.
You can also clearly hear the nozzle scrubbing over it.
Is that grid infill? If it is, try using gyroid or something else because grid accumulates filament at the intersections and might be the issue in the first picture (the dots are in a grid).
[quote=“GiMiCX, post:1, topic:145020”]
All screws have been tightened a little, including on the heating element.
[/quote] Yes, checked this already
20% is a bit high for my liking for storage. May be ok, though.
But when anyone says a print and filament used to print properly but now don’t, my knee jerk is water content. Those first two photos look like water issues to me but the others don’t. Not that they don’t look like water issues - I just haven’t seen that.
Have you tried drying the filament again to see how it behaves after?
I know what that means, but why do you think that…?
housing for a1 mini, the temp…???
and what is your statement based on?
saying something is not recommended without giving a reason… of course I’m asking, right?!
The 3Djake Eco PLA has 10% humidity in the dose.
The problem is that there are only a few hours between printing OK and printing problem. The filament should not suddenly become damp during that time.
I now suspect the nozzle and will probably order a new one.
I’m currently testing at least with a 0.2mm
Bambu recommends printing PLA open on all printers to ensure that heat creep can not happen.
I myself try to keep my PLA prints at a nice and cozy 35-39°C in my closed X1 chamber as this helps against curling and warping. However, do not do that if
I didn’t know that, thanks.
If necessary, I can just leave the door open or turn down/off the (integrated) heating.
My printer is in my workshop and it can be dusty and, above all, very cold there.
I think 25 degrees is great for PLA too, isnt it!?
