Large 10" Speaker Grille Split in Quadrants

This is a replacement grille for the 10" Bazooka marine subwoofer.

It requires four 12mm M3 flat head cap screws.

When printing, no supports are needed. There is an indentation for the screws where you could add localized supports, but my print came out fine without it.

Once printed, pre-thread the screws on the outside of each piece, so when assembling it will be easier to join each piece from the inside.

I designed this using Fusion 360, so I've included the raw parametric file if others wish to modify the design.

A possible improvement would be to add tabs on the underside of the grille to relocate the four M3 screws.