Even though the wah circuit is not that large, in this case the goal was to make the unit look like Edge’s, which has a black 1RU rack box enclosing it. I settled on using an off-the-shelf Lansing enclosure Graybox, which comes in many depths and is available in a nice black anodized finish. Based on the photos, I designed a panel with holes for 1/4″ audio, a power indicator LED, and and XLR jack for the expression pedal.
I don’t have an fancy milling or machining tools, so I printed out some full sized patterns from the drawing, and used them to mark the front (and back panels) for drilling with a drill press.
The labels were made using a P-Touch printer.
Trabantland 
What is the use of the isolated circuit?
Can i make that without this part?
the numbers of the measures are in centimeters?
Nice job!
Would it be possible to do the same thing to WH-4 in the same chasis? And use the empty WH-4 box as a controller?
That way you could have one chasis and resolve all audio cables passing to the pedalboard twice (for whammy as well as wah).
Cheers!