Here's what I did not understand:
- Why the front panel must be screwed
- The template for the screws are not in the scale of 1: 1 is available
- Only the center must be determined in order then to draw from there the screw holes
- The wood screws 3 mm in diameter and have also the drill 3 mm
Visually looks fine, the parts are virtually flat against each other, there are no joints and also the abundant supernatants of 3 mm are smoothed. When play rattles in a corner the wood. so completely flat can be that then did not build.
Conclusion: I'd not do it again and think about if I remove the bars again, exchanges against thinner and the front panel Label ado. The result would be a little worse, I would Cajon, just like our old Christmas tree, make for a cozy campfire in the middle ...;)