AB Performance Sabre Racer - Complete Bodywork in Carbon


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Ragged99
Ragged99
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Hi Guys,

I thought I'd pop up and show you what my mate Tim and I are doing with the Easy Composites systems in our garages.

We're what Enzo Ferrari called "Garagistas"  in that we both own AB Performance Sabre race cars, and we build, modify, and prepare them to run  in a race series called  RGB with the 750 motor Club.  In short we're clubman racers and we like building stuff.

Our cars are powered by bike engines, and we aren't allowed wings. so we need to generate aero efficiency from the main body of the car. 

Tim is in mid build of his new Sabre and wanted non standard bodywork to try and improve the aero efficiency, and I wanted different bodywork on my year old Sabre as the car is currently too big to fit in my garage without partially disassembling it, which is a right pain when you arrive home at midnight after a weekends racing.  Also I'm  a big lad and ultra lightweight carbon  bodywork will help me get down to the minimum weight limit for the car and driver.

So we basically decided to build our own bodywork from scratch.   I'd done some small scale fibreglass, buck and mould building in the past on a former car, and we were pretty impressed with the resin infusion process so decided to give the Easy Composites system a try.  We even ran a test infusion process on my glass coffee table top ;-) to make some flat carbon panels.

Although we've never tackled anything of this size, we're doing the full spectrum of build a buck, surface it, then make a mould, them carbon resin infused parts.

So for the last couple of months we've been building a buck around Tim's partially complete chassis.  Well in fact Tim has 90%  of the work and I'm chipping in at weekends.

The buck has been built from timber, 3mm mdf board which is nicely flexible for simple curves, filler and foam. and we're now at the pattern coat primer stage.   We've learned a lot along the way, but basically we've followed the video tutorials and have just scaled up the processes.

Full details are on Tim's website at www.hoverd.org

Details of my racing are at www.rgbracer.com.. and the main AB performance website is www.abperformance.co.uk.

But to whet your appetite here's a picture of the buck in pattern coat.
http://www.hoverd.org/Tim/ttcp/wp-content/uploads/2014/01/Black-again.jpg

Cost to date in materials for the buck, pattern coat, foam etc is about 500 quid, although I've just spent about 600-800 on Unimould materials + CSM  for the mould making stage.

Cheers

Adrian Moore
Edited 11 Years Ago by Ragged99
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Teem
Teem
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Warren (Staff) (03/01/2014)

One thing i will say is plan your mould flanges and mould split lines very carefully to ensure no mechanical lock and also easy demoulding and mould assembly.  You have to make your moulds such that you can assemble it and it holds the shape accurately.  You can use wooden battens on the reverse to further stiffen the moulds up.


Warren,

Thanks. It has to be said that we've probably spent more time talking about split lines and how to made flanges on the mouldings that locate them against each other than just about anything else. We now think we've got the basic ideas sorted out. However, time will tell! 

One issue, to be honest, is that we've built the buck on the car chassis itself (it doesn't actually run yet but all the running gear/wiring/cooling/etc is there). You can see the chassis/suspension/engine in the photos on my website. As such, it's going to make fitting fences to the mould a bit tricky; there's a particular issue around the roll-hoop support diagonals that we haven't entirely resolved yet. (Well, I have but I've failed to convince Adrian as yet! BigGrin)

Tim
GO

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