Flat cut out

Hi everyone, I’d like to know how I can cut out specific areas from STL files so they’re flat on the back and can be 3D printed. Currently, I’m doing this with Meshmixer. Shouldn’t it also be possible with Nomad?

no idea?

I use the Rectangle trim tool. We the view angle to be where I want and trim it flat.

Thank you for your reply. If I trim it, it cuts right through the body. I simply want to be able to remove the hair, like a stamp, at a specific depth, so that the removed part remains intact.