Slot blox 53mm cube

This is a simple design for building with 2.5-3mm thickness flat material,
the ideas for the use cases for this little block are endless
10mm reinforcement holes can be used for threaded steel bar or wood,
this design is simple but effective apologies if this already exists elsewhere i only created it to build a custom printer enclosure.
i will upload images once my polycarbonate sheet gets here.

(my first design so go easy on me)

examples :
cabinet
tool storage
printer enclosure