Using BS 1.7.6.92, the stl is a circular base for a figure. The first layer of the print seems to miss a portion of the circle and subsequent layers fail.
Here is the first layer
you can see where the circle isn’t completed. Here is the second layer
Here are the results of the print, I assume the failure was because of the first layer oddity?
Does the author of the STL need to fix it or is there something I can do? If it’s not obvious I didn’t create the stl, just trying to print it…
It doesn’t look like the face is laying flat on the build plate. First I would try “Auto Orient” (3rd icon from the left at the top) and see if Bambu Studio will fix it. If this doesn’t work, click the object, press “F” and select the bottom face of the model (it will have a white oval on the face) and this will lay that face flat to the bed.
I think that might have fixed it! I use the auto all the time, but usually when I am not sure what’s best. For this stl I double-clicked it, it opened it BS and appeared auto oriented the best way, apparently it was slightly off! Good to know!
I also check Orca and the same behavior exists.
I guess the moral is, if you import an STL, make sure to auto orient it or manually lay it on a face.
I guess the moral is if the slicer shows it isn’t going to print a whole bottom layer then there is a problem so don’t print it thinking it will print ok. most times it prints what the slicer shows it is going to. just saying.
once the model was on the bed in BS, I didn’t scroll through the slices, I assumed it was flat since that would make sense. I literally added the model, painted it and printed it, I didn’t orient it.
Its an STL issue. The slicer is doing exactly as expected, putting the largest flat section on the bed. Auto orientation isn’t going to help (likely would have done the same thing). Without modifying the STL, the slicer can’t orient the model to be flat when it isn’t flat. The slicer isn’t going to be able to determine how to fix this for you, because it requires a significant modification to the model. The easiest way to fix it is to simply cut it in-slicer with a fully flat bottom. Of course this will shorten the model, so the slicer will not do it for it, you need to tell it what is acceptable when it comes to deleting a small portion of the model.
Did you read the thread? Auto orient fixed the issue…
What I am saying is… THERE IS NO AMOUNT OF AUTO ORIENT that will fix that. Auto orient will only position it in the best way possible to print. It will still be uneven.
¯_(ツ)_/¯ I’ve had lots of models that didn’t import completely flat and auto orient has always fix them. @Dulphy did auto orient fix your issue with this model? Seems there has been some confusion.
True, you don’t need perfectly flat models to print. If un-even surface is within the printer’s ability to print an overhang, it will print fine. But if it isn’t, it will fail and cause what the OP had. This model looks to be well outside of any BBL printer’s ability to print overhangs, thus I would expect a fail without supports.
I was wrong to say “No amount of auto orient will fix it”, because it is possible top of the model is flat (or within the printer’s ability to print overhangs), and if the slicer turns it upside down it may print fine, but that would be a guess because we can’t see the whole model.
