saline

The problem was that the fillet was 1mm and the ledge was 1.5mm. The ledges ran into each other and Cura had a problem with that. Changed the fillet radius to 1.5mm to match the ledge, and Bob's your uncle.

I've got a shell with a deep pocket. Towards the open end, I have a ridge running around the inside of the shell. When I look at the stl file in the Prepare view it is fine. When I slice it, it's solid to the ridge. Drill Holder - Upper.stl CE3E3V2_Drill Holder - Upper.gcode

That makes sense. Larger footprint tower to support the whole wall. I didn't think I'd need the tower because I had a fairly sturdy wall at 3mm, but I guess at the apex of the "V" there was some instability. Once it got building, it seemed to fine.

I'm running Cura 5.3 on W11. My support settings work fine for small supports, but larger ones like the one below fall apart, sometimes. Notice that 2 of the supports worked fine, but 2 others fell apart (upper triangles). What support settings might improve this? CE3E3V2_FreezerBin.gcode

That's it. Unchecking Use Towers did it. Did you have that in your original profile checked? I could have sworn I duplicated your profile. Thanks.

No. Here are the settings of the project with respect to Normal supports. I thought about that too. It looks like a tree fill. But it seems to be happening to the elongated slots on the side it protrudes. Is there a minimum width of a support? In other words, I have a 2mm wall. If a support is required to be at least 3 mm thick, it would go outside the structure and generate a wall.

Greg Valiant, your model worked perfectly. Thanks.

Thanks. A minus value doesn't allow it to slice. Weird things happen as I rotate it. Attached are 2 examples. The supports move from one hole to the other, and from the outside to the inside.

Notice that the side with the support has the oblong hole support going to the outside, and the side without the support has the oblong hole's support going in.

That is what I want, but here is what I get with the file I attached. I went back in and opened it as a Project, just to make sure. I then checked all the settings in the Support section, and they match yours. Could the problem be in another group?

Still having problems with the overhang. I went and duplicated, I think, your settings. It worked on one side, but the other side still has the overhang. It looks like the support in the elongated hole still extends out in one of the directions. On one side it extends into the body, so no support. On the other it extends outside the body, and I can't get rid of those supports. Did I miss one of your settings? CE3E3V2_DriveHolder.3mf

Thanks. That was very helpful. I reduced the overhang support to 0.0 and placed the blocks to cover the overhang, but I still get a support. Looks like the oblong hole's support is still extending beyond the face on one side.

I'm using Cura 5.3.0 on W 11 system. In the attached file, I'm trying to block the lower supports that support the overhang, and leaving the supports for the elongated hole above it. I thought I blocked off the lower supports with the cubic block, but when I slice the supports still show up, and they also print. What have I missed? CE3E3V2_DriveHolder.3mf