Andy Evans wrote:

I'm assuming that I should cut out main holes before
anodisation - holes for tube sockets and XLRs for instance.

Yes.


But then I
should drill holes holding the top plate to the chassis after
anodisation so the screws make contact with the aluminium. This sounds
logical doesn't it?

You could drill the holes before anodising, and tap them afterwards. That
way, if there are any mishaps during the drilling, you aren't adding the
price of anodisng to the scrap box. (The taps should cut through the
anodised surface insde the holes without difficulty, BTW.)

AAMOI, how do you drill? Do you centre-punch and drill, or do you use a
centre drill to start and then do the hole? Do you clamp the piece before
drilling?


--
Wally
www.wally.myby.co.uk
http://iott.melodolic.com