How you fix your parts?

Hi there! want to ask you how you fix your models?
Which software do you use? Why?
Which type of issue is frequent?

Materialise Magics is just about the most advanced mesh optimization tool and solves 95% of my models automatically.
It also includes hollowing and boolean commands.

as i design all my models with openscad - I don't get any issues, ever :-)

With occasional models I download from thingiverse either simplify3d or flashprint will say: ' this model has problems would you like them fixed.'
And it fixes them.
At least i presume it does.
:-)

there are a couple online sites that will fix them, you dont even need to download any thing, just google them.

thanks for the information.

Meshmixer
Thinkercad
Fusion 360 for Hobbyist Free

There are many download all and find the one you like the best.