Ok have gone totally brain dead here tonight.
I have used a photcopier to enlarge a print. And have done it the old way of useing a grid system also a neat machine that you could put a picture under and it would project it onto the wall.
Now I was told of a item but do not knew the name of it that mounts on the table and one end has a pointer that you follow the pattern with and the other end has a pencil in it that draws the pattern as you go. I think there is four stickes joined together on it ... From what I was told it will enlarge or reduce a pattern .

is what is it called??? and has anyone used one??? and has anyone ever made one??
A lot of times access to the high tech copier is not possible and I was thinking this might be a great alternative.
Thanks