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Forcing walls round adjacent objects.

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I wondered if this is possible.

I am producing fairly large boxes. I have found even with PLA it helps to have 2mm high flat extensions on the corners of the boxes to stop warping. These are then cut off. I am using thin walls and low density fill. This means where the extensions are cut off I am exposing the fill. Is there a way of forcing the wall perimeter to go round the object and treat the extension as a separate object. I have tried making the extension a separate part but If I place it as close as I need to Cura treats as all one object. If I move it away so that Cura does treat it as a separate object with its own wall it ends up too far away to stick to the main object. Is there any way round this?

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Instead of adding the the extensions to the object. Try the hidden brim feature. Set the skirt distance to 0, this will make the skirt act differently and hug your object. Then if you set the line count to 10 to 20 it will make a nice flat piece around your print which you can cut off later with ease.

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