On my second round of printing, I have found that one of the prints (fairly wings) has some artifacts on the flat surfaces.
The previous print was flawless. The only difference with this print is that I flipped the orientation of the wings in Preform, so any surface differences between the two sides (from post production work) would be symmetrical.
The artifacts do not correspond to any of the geo of the model (decimated in Zbrush).
These could be similar to the layer shift/waviness that a lot of users are experiencing with the Form 3. Check out this thread here, which I started. This is a now identified issue by Formlabs with no current fix or timeline on a fix. Your issues seems similar but not identical.
Oh no, that’s not something one wants to see… I really hope FL gets the issue sorted.
My artifacts are a bit more geometric (faceted) in nature, however. I think sharpknife’s point about my (embarrassingly missed) penetrating support may be the culprit. I printed again, granted using the first and differently positioned, no penetrating supports, form file, with no issues.
Thank you, very much. Yes, I was able to get back on track with good prints. I never tried to print with the file that I originally had trouble with. BTW, it turns out those funky supports you pointed out in your paintover, aren’t penetrating from the back. They appear to be their own entities.
So not sure what caused those artifacts, but I’ll post if it happens again.
While the previous print was perfect, this one also has raised areas. However they are in different places this time (at the trailing edge of the wing). Both print jobs (perfect, and lumpy) came from the same file.
I just saw that there is a new Preform. Downloading. I have more of these wings to prints so wish me luck…
I printed again. However having shaken/stirred the previous print about a week prior, i did not do it again.
This time, I got some very subtle raises in a different spot (trailing edge of wing). My client paints them so it shouldn’t be an issue. Nonetheless, I am eager for FL to sort the issue.
That said, I will do a shake again prior to the next set of wings.
The issue is oddly intermittent and hard to reproduce. I don’t have the time or resources to do any tests, other than printing actual deliverables for my client. So far I’ve been lucky with just one full-bore failure.