Looks like this is the deal then Charles, outer is 1/8, wall is 0.01, and ive a scrap length of 3/32 brass rod that slots in fine.
Rick, shoot me your details in PM then bud, ill send it over.
lee
If the channel in question has a height of 1/8 inch (0.125) and the metal used is 0.015 inches thick, that would present an opening of 0.095 inch. That should be a perfect fit for a 3/32 inch thick panel edge. This is what I am guessing Rick has.
Great work Rick! This makes me want to start a SD build of my own
Slightly off-topic here, but... let's build one together, R2Dan!
We can store it in my flat when it's finished, so...
This thread gives us loads of tasty reference to check on.