It's always good to have different views as we don't all see the pitfalls in doing something straight off
Peter
OK I don't need prompting to open it again, if you decide to go ahead with a database then here is my suggestion.
Add another cell or two and give a list of suppliers for each size.
In the event of a damaged tube / bush etc the damaged can look at the screen and not only know what size they require but also where to get it init?
We used to have a great little model shop in the old town which sold all manner of things including brass tubes in metric and imperial sizes.
I have a vast stock of his various sized tubes, enough to last me out I am sure so I don't need to buy tubes any more I simply measure find and cut init?
The use of bushes is secondary to me so not an issue either, I don't buy kits unless I have to so I can't really say I will use the database.
Not everybody is in the same situation as me and it may be the best thing since Lord Woody joined the forums.
I just thought sourcing the material is as good as knowing what to source, like I said earlier where to stop init?
Nuff gob from me for now.