How would you make this: Options

[yellowchinaman]

This is quite possibly my favourite GT4 out there.



I spoke to the owner and he said he made everything him self.
Now I too make quite a few things and though Im not a fan of the lights and spoiler I do want to make the diffuser and canards.
Canards are already available to buy from almost anywhere but the diffuser....
I can't think of a good way to tackle this because it's really difficult to lay fibreglass neatly upside down.
The flat over the bumper is easy as you have the bumper to lay on but the blank gaps???

So here's the question for those DIY guru's out there:

How would you make this diffuser?

This post has been edited by yellowchinaman: Nov 21, 2013 - 7:24 AM

[yellowchinaman]

Flexible fibreglass was my initial plan. however bending a single ply sheet causes many variables in form. Ripples, cracking deformation. Even after you resin a few more layers after you have the desired shape.
Then I'd need to join and extend it up the bumper.
But I doubt it'll be very neat unless I make a few versions and spend days doing so.

I thought about stretching a membrane over like how sub builders do. But then again resining it upside is going to be a PITA.

I think the best way is to make a 3D scan of the rear. Remove the exhaust and scan it onto a computer.
That way a 3D model can be made of the tray and modified.
I'll see about having this made out of aluminium maybe before having it made of carbon.

Personally I think the spoiler blade is too short for that look. If it was going to be that high I think it should be at least the width of the car.