Volume Pedal Build

[Ultrakd]

Im looking for a good volume pedal build. I like the look of the Ernie Ball Volume Pedals but Im not sure how to go about making one. Could anyone give me some input, thanks.

[nexekho]

Most difficult part of one of those is the treadle - you can't just get an enclosure with one built in.  The internals are typically just a single potentiometer.  Could throw a booster in.