The question was, how to build it. Wandering around one of the model stores on Princeps Street here a couple of months ago I came across a Tamiya Spray Painting turntable with attachments. It was not so expensive so in true wargamer fashion and with the words “this’ll be useful at some point in the future” I picked it up.
After moving apartment I had inherited a couple of large DHL boxes. These have foldout flaps for closing. I had also picked up some A4 size sheets of MDF at Art Friend a couple of weeks ago with a comment to the lady of “at $1.20 each you can always afford to have a few of these laying around, you don’t know how useful they are until you have them”.
Put all these items together voila, a painting chamber. The A4 MDF sheet sits perfectly on the turntable and the turntable itself spins very freely. The two large DHL boxes mean the turntable is at a good height for spraying and the fold out flaps prevent me over-spraying onto other items in the room.
I must admit that this spray cabinet is actually easier to spray with than the old balcony method.
All-in-all, a good, simple solution to a simple problem.