hi! I am new to my new p1p, I have printed before with other machines but I must say that I am impressed with bambulab.
My problem now is that when I print with the Spectrum matt desert storm filament everything goes wrong.
Threads, wider holes, the nozzle drags gobs and leaves them everywhere…
I’ve tried everything and I have no idea where to go next so any help would be eternally appreciated.
I forgot to mention that I also suffered from unbreakable supports and humidity
Did you ensure that you dried out the filament thoroughly before using it, and did you calibrate the filament in OrcaSlicer? If you haven’t, do both and see how it works after that.
I’m going to try it! thanks for the advice!
I’ll stop by to tell my conclusions when I find the key
By coincidence I also just got Desert Storm last week. It was well sealed and hissed when opened but it was clearly wet when printed. After drying it is perfect.
I have tried all the Orca tests and I have not reached solid data. The filament is dry.
I have the PA set to 0.04 and it seems a lot to me but that’s what the test says. I see excess extrusion. I will try to lower the value
I have corrected the Z offset to a range between -0.02 and -0.06. I continue with sticks gobs
According to the temperature tower I am at 225 ºC it seems a bit low but the test is clear
Flow is at 1.1, max flow at 12.
The tolerance test came out clearly .1
I don’t have photos right now but if I raise the temperature to 250 the filament becomes very ugly, I still have gobs and even some lateral numbers that occupy several layers stopped coming out, only some dots come out of it.
On the other hand, in the layer to the right there are a lot of waves that seem to be excessive extrusion.
1.1 flow is too much, just stick with the default 0.95
After many days of testing I am not able to use this filament well.
I have corrected all but one of the problems. The material sticks to the nozzle and leaves it elsewhere, spoiling the part. It is not a lot of material that is deposited but just enough to have to throw away the work.
The nozzle is perfectly clean, not clogged and has a non-stick treatment.
If I print with any other petg it comes out perfect
I don’t know what else to do, I’m thinking of leaving this filament as impossible
Have you run a Max Flow test yet? It may simply be running at too high a speed/flow. Jump on Orca Slicer and run a max flow test. Note, sometimes you need to override the cooling tab of the filament profile for it to run correctly. Make sure to check the flows and speeds make sense (basically starting slow and ending fast), if they don’t go to the filament’s cooling tab and uncheck “Slow down for better layer cooling”.
Once you are done with the test, take a look and figure out at which point the print starts to look bad. On the slicer you can find the actual flow that corresponds to the height of the print, and that is the upper limit of your volumetric flow and speed.
My guess, the flow/speeds you are running might be too high, or the temp you are using might be too low.
There are two important things to think about here, the manufacturer’s suggestions and Bambu Labs design. The first, the maker’s specs, show recommended printing speeds of 30-70 mm/s. Using a .4 nozzle that puts the Generic Profile’s base setting of 10mm3, at twice the speed the filament can take. Basically way too fast.
On the second, note that all Bambu Lab printers use a steel nozzle. Some hardened some not, but all are steel. Steel isn’t as good as brass at transferring heat, so running the temps on the lower side of the maker’s suggestions is probably a bad idea (because the actual temps are likely lower than expected due to steel not transferring heat well). In all honesty, I’m finding running nearly all my filaments near the top end of the range (or more) is best. Luckily, most of Bambu’s profiles are setup that way.
I came close to visually OK part, just to find it was brittle and could be pulled apart easy.
Never again Spectrum matt PETG.
Same problem with spectrum pla….nothing to do. Spectrum is a trash…for me and my printer…never again
