Printed this fidget in Bambu PLA Silk+ using the standard Bambu PLA Silk+ profile though I turned off the part fan for the first 4 layers because that’s what the directions for my wham bam carbon fiber plate said to do, as well as slowed outer wall to 50 per Bambu instruction. Filament has been dried. And after drying remains in my Sunlu s4 from which it is printed from. Humidity in the S4 remains between 10 and 14% (happy mzip?)
However, one spot on the top layer of the inner most spinney bit has a wonky texture.
Any idea why, and how do I prevent it?
Side question, if I print the same model in PLA and PETG, using the most appropriate filament profile, they come out vastly different. The PLA (minus the wonky surface but) comes out more or less perfect. The PETG on the other hand comes out with WAY looser tolerances where it barely even spins but not the same surface issue. (Yes looser, not tighter, the rings don’t spin because they hit each other)
Why does it do that and how do I fix that?
Side note, I ran the exact same print, using a different color/brand of PLA and didn’t have the same surface issues…
Using:
A1
Bambu Studio
Bambu PLA silk+
Included the 3mf for the PLA silk+
I’ll throw you a 3rd silly wrench in here. Silk is notorious for expanding more as well.
Anything I have sliced with silk just looks bad or prints wonky if I use the same settings and forget which roll type thing.
Also I noticed silk expansion when I print my puzzles - my tolerances between pieces is 0.11 by default and with the silk they would fuse together annoyingly. had to change the tolerance in my autocad to 0.14 for silk to work.
I don’t use petg but i’m pretty sure that expands less than pla by default, which is why it’s all wonky here from one print to the next for you across the lot of them.
how to fix…phew…I’m still trying to narrow down how to do it (if we can) printer slicer side. I fixed mine directly model side autocad side and was done with it. too much headaches for me.
If someone knows the settings We can wait for them to help out, I tweaked stuff but never got it slicer side
For the silk? The conclusion was basically don’t print more than 2 or 3 at a time due to the filament cooling too quickly while the rest of the layer is finished.
I think this might be the issue I’m experiencing as well with fidget spinners I’m trying to print in Silk+. They tend to bind a lot on the gears, while PETG-HF and PLA spin just fine. Extra expansion would explain it. It’d be nice if there was a slicer-side setting that would correct that issue - I’m not at all smart on using CAD to change tolerances, particularly for someone else’s model pattern.
