Sometimes it works ... 🙂
Well, "sometimes" is potentially not correct. "Somewhere" might be. Let me explain:
I'm trying to print 4 copies of the same object. It's the same .stl:
The two centermost prints finish with a very nice, clean surface. But those on the back just don't. The print goes fine until the top layers (I do 4), and I end up with an uneven surface towards the rounded edge.
This is repeatable - every print, the center pieces will print fine, but the ones in the back won't. Of course, I'm aware that I could just print in the center, but I'd like my printer to be able to print perfectly everywhere ;).
Troubleshooting so far:
* Cleaning, Firmware update, re-slicing has been done
* I do not think it has to do anything with the filament, as 2 copies print well and 2 don't.
* I also do not think it has anything to do with bed temperature, since the first layers print fine
Have any of you experienced similar issues? Can anyone suggest a solution?
Best Answer by Diem:
Hard to judge without a picture of the problem ... also of the underside of a failed part.
If the unevenness is a semi-regular ripple then it's probably a minor warp.
Warping is commonest at the edges of the bed for two reasons:
Drafts cool the edges of the print sheet more than the centre - make sure there are none.
Fingerprints tend to ingrain around the edges and can be hard to shift - a drastic clean, rubbing neat dishwashing detergent (Dawn/Fairy) into the surface, waiting a few minutes and then rinsing clean with very *HOT* water might be needed to shift them.
Cheerio,
Hard to judge without a picture of the problem ... also of the underside of a failed part.
If the unevenness is a semi-regular ripple then it's probably a minor warp.
Warping is commonest at the edges of the bed for two reasons:
Drafts cool the edges of the print sheet more than the centre - make sure there are none.
Fingerprints tend to ingrain around the edges and can be hard to shift - a drastic clean, rubbing neat dishwashing detergent (Dawn/Fairy) into the surface, waiting a few minutes and then rinsing clean with very *HOT* water might be needed to shift them.
Cheerio,
RE: Sometimes it works ... 🙂
Sure!
Bottom layer looks perfect on both pieces.
Top layer is slightly worse for the piece printed in the back. I don't think it has to do with bed heating, as the first layer looks good on both pieces. Print bed has been cleaned regularily, but as before, I don't think that is the cause of the issue.
The flaws are minor, but it's just not as perfect of a surface as it could be. It's not flat, it's a bit rough - I suppose I could get rid of it with ironing, but that would double the time for the print, so not an ideal solution 🙂
I suspect that if you offered it up against a straightedge you would see a slight warp - A quick swipe with sandpaper would remove the worst of it. Wat happens if you move the whole group forward on the plate?
Cheerio,