So Bambu Studio seems to be adding ‘artifacts’ when slicing a model from AutoDesk Fusion. My model contains multiple bodies that are imported as a single multi part, multi color, project. Layer 1 slices as expected but layer 2 adds some unintended and unwanted, artifacts at the border of 2 colours in a 3rd color not intended to for that location. In Layer 3 the artifacts are larger. Layer 4 is a pure solid layer of the base color of the main body (White). I am trying to understand what is causing this and more importantly, how to prevent it or at the very least, override it.
I have also seen these kinds of artificially-added details in Studio slices. Where a layer should be uniform, there are occasionally little areas that somehow get walls added and then filled in. The layer still gets printed with complete coverage but if the layer is visible the different fill pattern can be seen.
For me when I’ve seen it, it’s usually just a spot or two. That’s pretty extensive in those screenshots.
I’ve got a few models where I saw this but don’t have access to my computer right now to see if the areas are still there.
But I’ve seen this too. I never figured out how to get rid of it.
And it’s always been multicolor/multipart models where the bits get imported as a single ‘thing”. Don’t know if it’s some cruft from Fusion tripping up Studio or if it’s just Studio on its own doing it.
I can Jon. Check my Reddy Kilowatt clock. On layer 4 of the clock face there are two odd little ovals that appear in the slice when it should be a solid and uniform layer. Like I said, I’ve seen this effect on a number of models. That slice image below is with Studio 2.8.2.60.
Looking at it now I guess what I see hasn’t had walls added. It’s just islands of solid infill.
Added - @JonRaymond, something else. I imported just that stl file alone and sliced it and no issues with islands. It sliced clean. It seems at least in this case to be provoked by the layer underneath it maybe?
The design below that diffuser is 0.6mm thick (3 layers of 0.2mm each) but when I extrude those kinds of designs in Fusion I do the extrude distance as a numeric input of 0.6mm. The stls below the diffuser should all be the exact same height. What the diffuser sits on top of should be entirely coplanar.
Also, I’ve seen this in designs occasionally as long as I’ve been doing the lightboxes and clocks - over 2 years.
I created a small test model to replicated the issue and it exhibits the same behaviour but oddly more between an inlay and the base part where the original is between the inlays. And in the test case, I have 3 bodies and it adds a fourth color (the black) when creating the project from Fusion.
I am really having a hard time understanding why Bambu does not just slice each body in the color specified. Attached is the Bambu Studio project file for the test piece.
Because you painted the circle two colors: yellow on the bottom and black on the top (the side that isn’t visible), which doesn’t really make sense. You probably only colored one side - that was the mistake?
So this is another example of painted parts messing with Studio? Mine may be a different issue then since I don’t paint or apply colors/materials in Fusion.
Yes, after switching to a grey I was able to get the weird blending in the same color as the inlay, which is somewhat better but still weird. The ‘blending’ appears now in whatever color I make the body.
And yes, my original model had the yellow only on the surface of the inlay and not the whole body. Good catch, I had not noticed that.
The feathering or whatever you wanna call it is a function of whatever applied the “paint” here. You say Fusion. If you destroy/reset all paint, it slices smooth. [although of the colors described in the object pane, not in the paint]
I think what you are experiencing is a result of Bambu wanting to ‘strengthen’ the layer based on features from previous layers. That can be somewhat frustrating as well.
I didn’t even know Studio did that! I’ll look for a way to turn that off then and I appreciate the heads-up! Hopefully it can be turned off. I never turned anything like that on. At least not knowingly but then Studio was bad about copying parameters from other files you opened.
That’s the big reason for the diffuser in my designs in the first place. When I first got the printer I made lightboxes for the neighbor kids for Christmas - a butterfly and a Bob the Builder truck from models on MW. The absolute very first thing they did was hug them and broke the designs out on both of them. Turned something that was supposed to be fun into a mini crisis.
When I learned how to do my own designs it was a priority to add a diffuser to the design to lock them where they weren’t just held together by whatever bonding the edges had.
I have not found a way to control those ‘features’, but I am new to this game.
Not really sure what you are referring to as a ‘diffuser’, but so far have not had any issues with inlayed text or graphics breaking loose of my base part. I can see it being an issue on transitions though, particularly between different materials.
Ah. In many lightboxes the color parts of the design are all that makes up the lightbox lens and all that holds them together are the borders between the colors. And it’s thin to get brighter displays. I use the (fairly) standard 3 layers at 0.2mm each so just a 0.6mm height on those borders.
The diffuser I draw in is two more layers of white which bonds over the whole area of the lens and locks the color areas in position. It does act as a diffuser but it really adds strength as the design now is a full 1mm thick.
I’ve only seen the colors pull apart at the edges/borders on lightboxes and similar thin designs that have nothing on the back to hold the colors in place. Essentially what the diffuser layer does is make the lightbox lens where the design is bonded to a base part.
