To resolve the problems and issues related to slate, The changes made by us in the slate and stylus(Braille Pen) in such a way that it does not affect it's standard parameter.
We can Emboss the holes instead of engrave in the slate part(Lower part).
We can make some changes in the stylus. We can put a hollow cylinder in front of the stylus. So it can punch the paper upper side instead of lower side.