Some companies are making 3D pens.
I like idea of making a 3D pen which also 'scans' the shape as it is being formed.
https://www.youtube.com/watch?v=emUlHFWcHck
I like idea of making a 3D pen which also 'scans' the shape as it is being formed.
https://www.youtube.com/watch?v=emUlHFWcHck