Trying To Add Brim  

RE: Trying To Add Brim

Maybe the model is not sitting flat on the surface but on a small angle. Use the F key to make sure it's properly placed. 

RE: Trying To Add Brim

The brim does not show up when doing a G code preview.   I just loaded another building file and sliced it with a brim and it worked fine - shows up on the preview also.

Thanks for the tip about the F key.

George

RE: Trying To Add Brim

Maybe time to upload a zipped 3mf project file (PrusaSlicer->Save as project, then compress with the Windows or MacOS compress utilities). This will show us the STL and your settings. No need to upload any gcode files. 

RE: Trying To Add Brim

I think I compressed this file correctly.  Let me know if there is a problem.  Thanks so much for taking the time to do this.

George

RE:

EDIT: My version of the 3mf attached.

As I suspected, the bottom of the building is not a perfectly flat structure but there's a slight angle in it. You can see this in two ways. When you slice it and look at the Preview, you can use the slider on the right to just look at the first layer. You'll see that the right side of the building is on the plate but the rest of the building is not. Also, when you select the building and press F, you see two areas on the base highlighted that are at a slight angle to each other. 

So, to remedy this situation, two ideas: If this is your model, fix the problem with its base. If not, you can select the building, press C for cut, and cut away some part of the base. I set Z to 0.5mm, keep upper part, and it created the brim perfectly. Having said that, you shouldn't really need a brim for this model.

RE: Trying To Add Brim

Thank you so much for finding the problem and for the education! 

Really appreciate this - George