I am planning to make a macro keyboard using an arduino pro micro - I have the designs for the electronics stuff done but am looking to laser cut a case instead of 3D Printing one (cheaper,quicker and more accurate). However I am not completely sure about how I could mount the sides together (am thinking of using hot glue). I have a design in fusion 360 (image below) and have exported all of the sides as dxf files to cut. I have seen tabbed designs done on the boxes In the workshop and was wondering how I would do that.
I also have a .step file below to it anyone wanted to have a look at the exact box