Curious if anyone knows the name of a machine that I have in my head, but dont know the name of. I am looking to make a model of something in foam but need to trace the original and was curious what machine I am looking for. Something that I would hold one end and trace the contours of the original and on the other end of the arm it would cut with a rotozip or dremel in foam.

Almost like a mill but not computer driven, more hand driven.

Help would be great.

Thats my first post.