N Cook wrote:


The 0.08mm thick aluminium dome must have been press-formed (or that very
hands-on turning type process that I forget the name of) with a cylinder
extension to the dome and the cylinder section is glued to the inside of the
VC former.

Spinning perhaps?

So had to cut around the dome to remove and have to hope the
final gluing-back holds up against the air pumping process.

That`s partly why there`s a hole through the magnet, some speaker
manufacturers put a hole in the dome. If the original dome is damaged,
Wembley Loudspeakers will sell you one. If you're worried about
cosmetics, fit a larger dome to hide the remains of the old one.

I'm thinking of some golf tees in the rim mount holes to give sliding
alignment with the holes in the periphery of the cone on re-assembly.

Just line it up properly in the first place

Ron(UK)

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