Hi I am working on a project where I am mounting a set of speakers into steel spheres as enclosures. I have holes cut in the spheres to accept the speaker body, which fit nicely, but the mounting bracket of the speaker sticks out on either side due to the curvature of the sphere.
What would be a good method for filling or eliminating this gap? The steel sphere is 8" diameter, the speaker is 6.14" outside diameter (edge of the mounting bracket), and the cutout in the sphere for the speaker body is 5.25". Here are some pictures of my setup for reference:
Three strategies came to mind:
Getting a rubber gasket that could sit between the speaker bracket and the surface of the sphere. This is easy install wise, but seems hard to find the correctly sized part and might end up with the same problem, just with a gap between the bottom of the gasket and the sphere.
Dremeling notches into the edges of the cutout of a pre-calculated depth and spacing, then hammering the notched sections flat. Pretty labor intensive and potentially imprecise, but would probably lead to the closest mount.
Hammering the edges of the speaker mount to sit flush with the sphere. Probably would look busted, but it's on the table.
Any of these or other methods that seem like they would be the best approach?
Here are my steel sphere and speaker components for reference. Thanks!