samhain
Prominent Member
I have the parts express ultimax 18 CNC machined sub box. The outer pre-cut hole is a maximum of 18” 3/8th’s which is the perfect size for the ultimax speaker. A different speaker has caught my eye in the FI HT3 18 but it needs a hole of 18” and 4/8th’s. It’s a tiny bit bigger of 1/8th of an inch or 3.175mm.
How would you go about increasing the size of the outer hole so it’s perfect all the way round for a slightly bigger sub. It’s so close but 3mm means the sub won’t sit flush with the hole.
Would an even sanding with the hand all the way around the hole do it or is it more complicated?
How would you go about increasing the size of the outer hole so it’s perfect all the way round for a slightly bigger sub. It’s so close but 3mm means the sub won’t sit flush with the hole.
Would an even sanding with the hand all the way around the hole do it or is it more complicated?