In connection with a fine order of wine boxes, I had to redesign my standard wine box, so that the assembly time would be as short as possible (just a little shorter and easier 
).
With the old boxes, Kerfsetting had to be very balanced in order to be able to assemble with 3mm MDF stably but still nicely. In the end, I used superglue to ensure that the boxes could not fall apart. This whole process was not optimal.
I experimented a lot with wedge joints and finally found something that can be used for the purpose.
The advantage is the rustic look and very easy assembly of the items and no glue is needed anymore.
Now my kerfsetting is at 0 and I construct the boxes to the end measurement.
For 5mm wedge joints, I use a wedge with a skewed inside of 4.8 to 5.2mm and the holes are offset towards the inside of the box by 0.1mm and oversized by 0.2mm. 2.5mm of material around the hole to hold the wedge is enough, as far as I can judge from my first 10 boxes. They are very stable and the feedback I have received on their appearance is promising.
The box in the picture I only used to test the connections and they can just be scaled down to the desired material thickness.
If this connection is called something else in English, please feel free to correct me.
…here’s a detail from the wine box
