My home kitchen (Evobean's)

[Colour Republic]

One of the main problems was the cam locks, they never fit first time and end up fiddling around with the lock until it drops in place. We noticed that it seems the recesses in the cabinets for them are too deep, hence why they don't lock into place without a bit of fiddling. Other than that, impressed so far!

The holes for most cam locks can sometimes be 1-2mm deeper than the cam itself, however this shouldn't be a problem as the way cams are designed it shouldn't matter if they are pushed all in way in or just flush with the surface as they have tolerance within the cam itself.

I suspect your problem is because you are not inserting them correctly to begin with. If you look closely at the cam you will notice either an arrow or small triangle. This arrow/triangle should be pointing towards the edge of board, or more precisely it should be aligned with the exit hole in the board where the dowel will enter. If it is not aligned correctly before you try to join the boards then it will cause you to fiddle around until it is.