Quite frequently I hear this cry for 'true plans', but the reason so many cabs turn out great is because they are not copied identically from a set scheme, but started from some basic principles and made for 'best fit' as they go along.
I've come up with many original cabinet designs (all the Turnarcades cabinet dimensions and construction methods were designed by me from scratch) and now creating a new design is just done following the same method. Here are my rules for creating your own cabinet plan:
1. Look at a cabinet with a similar shape to what you are after (in your case, a showcase cabinet).
2. Research/test in real life the ideal height for the control panel that you find comfortable (an easy way to do this is to browse it on here, then cut a piece of cardboard amd set it at that height somehow and see if your hands rest comfortably on it).
3. Measure your space requirements in your home first and the minimum space your monitor will need inside the cabinet (remember the monitor should also be at a comfortable level height with your eyes if possible).
4. Sketch these elements on a sheet of squared paper first (graph paper), then just fill the spaces between them with lines and measure those lines - that's pretty much it.
5. Golden rule - do not over-complicate your design if you are not a skilled craftsman. The simplest designs and construction methods usually make the most effective results with least chance of error.
It's with these principles I created these:
