I don’t use rafts that often but I recently had a small, cheapy printer pass through my hands and while testing it, I printed a couple of models that came with it and they had smooth rafts that detached easily and cleanly from the model (the printer did not have a heated print bed so rafts make sense). One of the prints broke so I decided to print on my P1S and was able to locate the stl of the model. Slicing on printing on the P1S with a raft, there is a rectilinear interface that sticks as much to the model as to the raft (and sometimes more). Putting the model through Cura, I see that the model is sliced with a 1 layer gap between a smooth raft and the model with no interface.
So the question is, is there any way to replicate that with Bambu Slicer? I know the rafts is a fairly new feature. The obvious place for it to be would be in the Support/raft interface option which currently lists available filaments but could also have a ‘none’ option. I’m including a picture from the Cura slice to illustrate what I mean.
I’m not sure if it’s the same as you’re subject but Bambu Studio has a Raft Layers option. When it’s set higher than 0, you can specify the Z distance to the object. When I use the Raft, I typically set the distance to 0.1mm.
On a side note, I printed an object that is only 4mm at the base and 3mm at the top. I printed one with a raft and one without and couldn’t tell the difference. In my case, a raft wasn’t necessary. The image below is a capture of what it looks like in Studio with extreme zoom. Remember, this is only 4mm at the base.
Yeah, I think the raft layers is just the layers in the raft though and you get support in the gap. I’ll have to see what happens if I crank the Z distance up a bit.
Cura has a lot more options for the raft. It’s worth a look. Not that I’m pushing Cura over Bambu Studio, I think they both have their pluses and minuses.
Edit: So I increased the Z and it doesn’t increase the thickness of the interface layer. So that may be the way to go.
However, The problem is the interface layer has those thin bits of filament. The model I printed with the flat surface on the raft, if you look at the raft, you can hardly even tell where the model contacted it. That’s how clean it came away. The Bambu version can be a right pain and I nearly poked myself getting it off and gave up on some smaller pieces and just cranked the heat on the print bed (which worked well enough) for extra adhesion.
If you leave the Raft Base and Interface set to Default, it uses the current filament. It touches the model so little, the raft just peels away.
