This is a 18 hours print of a hexagonal base with 50 degree beveled at the bottom, printed it at 0.12mm layer height with stock U1 0.4mm nozzles.
The wrapping /distortion occurred at the corner of beveled points and edges, but it’s not warping from the build plate, the bottom adhesion is great and flat. Oddly, a failed print from earlier has way less distortion.
I’m wondering if it has to do with top portion shrinking? But vanilla Orca completed print with minimum distortion like the failed print from SnOrca. Any idea what happened?
I can’t see why it would, except at random, unless there is something materially different about the way the two slicers draw out each layer. Preview the nozzle movements and see whether they are much different.
Warping is a geometry thing, a print is always trying to warp but you can mitigate it with careful design (avoiding long straight runs of print in a layer). If a print doesn’t warp, it is only because the warp stresses are insufficient to overcome the grip from below. Obviously, overhangs have less to hold onto.
In my experience, there is luck involved. According to how marginal the print is, there is a failure rate which is not necessarily 100%.
Certainly controlling the cooling appropriately for the specific filament type is in the mix of mitigations, but that might mean reducing the cooling.
There has been a post somewhere on here about uneven cooling because of the direction of the fan relative to the print, so that only one side gets the draught.
First: are you talking about PLA? It matters.
Second: if so, are you printing with the door shut? If so, try opening it. PLA doesn’t like an enclosed printer.
Bambu Studio slices model differently than Orca, I suspected it that is the same with SnOrca. This model is printed outer-inner wall order.
Both SnOrca & Orca are using 100% fan speed. Orca prints outer wall at speed:40 while SnOrca does it at 60, 50% faster.
The failed print in the photo is actual from Orca, now I think of it. I switched to SnOrca thinking it would produce better result.
Question: Where does vanilla Orca gets U1 printer profile? I still don’t know why Bambu Studio and SnOrca produces different slice result from vanilla Orca.
Yes, Bambu matte PLA.
Topless U1 sits in a IKEA kitchen cabinet with a 12v fan vents out the fume. The temperature is not the issue here. The culprit must be the 50% print speed increase from SnOrca. I’ll test it with vanilla orca in the multiple prime towers next.
If that was the case, I would expect the left and right (X axis) pointy bits to curl differently. Unless this is a front to back (Y axis) side view, then I would expect them to be the same.
A faster printing speed warping more does imply that printing slower gives it more time to cool between layers. I’ve never had printing slower make things worse.
