About this 3D model

Hey, thats my attempt of designing an box for my kitchen door, underneath my sink. As there is a panel, thats used to hide the sink itself, i needed to create this a bit longer. This gets a bit unstable, but i might come along with a V2. Check out the remix published by Martin421 , he is using screws instead of this hinge. Fusion 360 File, STL etc. is included, so feel free to modify.