ArcWelderLib VS preprocess_cancellation

definitely arc welder, but you have to have g1 g2 enabled on your firmware. read this command here here and you can download the console app to run it on your exported gcode on arcwelders github

For other slicers, you will need to use a script like ArcWelder (Cura Plugin) (Script for other slicers)

Look into Arc Welder for further explanation and as a potential solution (though it is not perfect and can have its own downsides). The OctoPrint plugin is no longer maintained afaik, but there is a Cura plugin and other slicer post-processing methods.

You could also post process your sliced model through ArcWelder and get perfect arc curves for your print. It will go through the G-codes, detect curves, and change them to G2/G3 arc codes removing the edges completely.

if you're feeling really adventurous you could manually apply arcwelder using CLI https://github.com/FormerLurker/ArcWelderLib

You could try using this script

Another option to try is the preprocess_cancellation script.

When you upload the file to the printer, it has to run a script against the file to make object cancellation work. You can do this ahead of time as a post-processing option in SuperSlicer but it isn't necessary. https://github.com/kageurufu/preprocess_cancellation/releases/

That said, if you are concerned you can disable that option and do the exclude object post-processing with your slicing using this post-processing script

Do you have this add on installed in your slicer? https://github.com/kageurufu/cancelobject-preprocessor