Decided to make the surrounds for the "C" buttons. After thinking about drilling holes in wood for the mount, I decided to keep options open and look for more conventional ways. I hit on the idea of using the tops off fizzy drink bottles (or "soda bottles" as I think Americans call them), they are a little big, but can be cut to size, and their plastic is strong enough for the job.
I cut out a strip across the bottle top with my dremel, leaving a strip just under the width of the inside of the tact switch.
I hot glued the tact switch to the cap, then added extra hot glue between the tact switch edges and the edges of the bottle top; then trimmed down the sides of the bottle cap so they are the same height as the top of the side bits of the button. On a normal controller, these sides bits of a button are used to slot into grooves to stop the button rotating. I don't have to worry about rotation as the hot glue sticking the button to the tact switch does the same job.
It may not be too easy to see from the pic below, but I cut out a button hole from acetate (a bit of scrap) and put the button in place for illustration.
I realised that the best way to mount these in the case was at a diagonal, so I prized off the button from the tact switch and re-glued it at a diagonal.
Hot glued the first one in place. The tact switch contacts are ready for soldering their wires to at a later time!
Two views from the back and one from the front:
Please ignore the usual stray strands of hot glue residue! I tested the button, works perfectly and so does the bottle cap plastic!!
