[ZapWizard]

Thanks for the info, the current design is my idea if I were to hand make it.
Using a dremel cutting wheel, and it wouldn't be very pretty at the edges.
I have some very small milling bits, down to 2mm that I may try to use on an XY table, but it will be experimental.

If CNCed, I will have to consult who ever does the CNCing to check their minimum tolerances and cutting size, the adapt the design to their capabilities.