Modelling for 3D-printing. Can i use sharp edges?

for example if i want to print rather simple detail with relatively sharp edges, i can use crease, like this

or i better use bevel and crease together, like here

I just want to know how 3D printers work with sharp edges. Do i have to bevel all my details’ hard edges with at least 1 mm bevel thickness?


it`s depend from what kind of material you will use and how big will be your model. It is always good to use bevel at the edges because sometimes the corners can be broken, but the important is the material and the technology that you will use and then you can decide how big can be the bevel thickness. If you have the possibility print two models. One with 0 Bevel and one with 1mm to see the difference.

Thank you!