3D print - Mesh thickness analysis/constraint

Hi . I am going to do a 3D print of a mesh in Blender. Is there any plugin or option that allow me to find where the mesh is below 1 mm and something that helps to correct that area?

Thank you

did you try the 3D print addon?

happy bl

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No, thank you!

check it out
there might be something for thickness

and many other things

try to find video tut for this addon

happy bl

Thank you ! I will definitively use it in future cases. This was a really tight deadline and I ended up using the built-in Mesh Analysis.