paper cutter

I made a paper cutter ,it used for cutting paper and photograph (width ≤150mm) .
installation instruction is shown in the picture.
special tips:
I need a wallpaper blade, and break off two parts with plier (see picture. ) after inserting blade.( Be careful your hand)

This model was printed using PLA. (fill in 10%，using a lower layer hight (0.15/0.2mm)，no support)