Learning how to design models for 3D printing now, and rounded corners are a matter of necessity as much as aesthetics. Objects with sharp corners are uncomfort

Learning how to design models for 3D printing now, and rounded corners are a matter of necessity as much as aesthetics. Objects with sharp corners are uncomfortable to hold, even risk of injury with some materials. They are also unhygienic and pain to clean dust out of. On the flipside, math to generate rounded corners on arbitrary shapes is messy and printing these out often requires supports and postprocessing to remove those and polish the curves with sandpaper.