Since all of us here seem to be rather hands on I wanted to present a project that has been swimming in the back of my mind for some time. I finished the cobra, the riot is 95% there and the ferrari is as good as done so I want a project that I can take on cheaply that will give me some more complex fiberglass experiance.(Plus I have run out of garage bays) I want to build a set of replica B & W Natulius speakers.
they look like this![]()
Just so you guys know thesse things are ~5 foot tall and 2 foot across.
I would like to build them myself, doing hand formed foam, but I am just knocking some ideas around in my head. They don't need to sound anything like the originals as that is not my purpose, I just want to have some fun and I have always loved the look of these things. I can buiild my own speakers to fit into this cab. and they will be very low power and the interior of the glass will be dynomated
So far my plan of attack is to build a internal wooden structure, this is effectivaly the start of the original's. Then use a expanding foam on them and carve out the shapes that I want. Using a real tight fiberglass build ~2-3 layers over the foam. Sand the heck out of them, use automotive filler on the outside, take them to the paint shop or airbrush them myself. I am going to use premade speaker mounts in the front which will have be be flushed in.
First question, what do you thiunk it will cost in supplies to make the shells, basically discount the paint and speakers.
Can I get a good curve on these things with expanding foam that will A. Hold up to fiberglass B be realitivly easy to get my hands on. I.E. spray on stuff.
Am I going about this the wrond way, example. Should I CNC the foam molds if I can create the item in rhino. Any idead's I really just need something to get my hand dirty again.