About this 3D model

Do you see the reason why I need an easy removable door blocker? Yes …. my cat is the reason. Take a look at my first picture, she is the reason. The blocker prevents the door from closing. The cat is free and I am free as well. Created in 3 separated pieces with fusion 360, each piece positioned and printed flat to improve mechanical strength. assembled with 4 M3 x 12 mm screws stl and 3mf files provided sliced with Prusa slicer