Adjustable Bookstand

This is a bookstand, that uses a flat base instead of a slanted one. You can slide the stand along the base to adjust the stand to fit the book (that is why I made the base flat). The bolts are to be put into the notches along the side of the base and stand, to lock them together. I haven't actually used the 3-D printed bolts, so I don't know how it will work out (leave a comment about it if you use the bolts). I used nails, which work fine.