Introducing - Voodoo Auto Kits.

[twinturbo]

Good Luck

TT

[les g]

now you know what he was doing at the show
all those pictures him and Tj took were for inspiration not for his album
good luck guys
all the very best
Fabby is a master with grp be good to see him back in his Blue Suit
(bit gay though)
i,m sure it will be a hit
cheers les g
PS. Mark you left your jar of coffee in my van how wil you stay awake

[MarkB]

Panels will be resin infused which must be a first on a relatively low budget Kit Car but will just ooooooze with quality in the muchness stakes. Also means I don't have to get covered in resin..

[mark]

Originally Posted by MarkB

Panels will be resin infused which must be a first on a relatively low budget Kit Car but will just ooooooze with quality in the muchness stakes. Also means I don't have to get covered in resin..

So whats that mean then? i know nowt about fibreglass

Be nice to see a new set of bodywork

[MarkB]

Vacuum bagging and more or less the same way F1 folk make carbon fibre parts like the tub etc. Although CF F1 stuff is all prepreg then autoclaved.

[AshG]

how you going to cure it? have you managed to get your hands on an autoclave? if you have im your new new best friend

prepreg is the future, we do it at work but they wont let me near the ovens as they have to be kept super clean as they are making medical gear in them

on the plus side i can get hold of roughing and turbo pumps easily that can pull down to 10-7 which is mega overkill for cf work.

[MikeB]

its less labour as Mark says, I'm no expert but with a traditional mould you have to apply the resin by hand then layer the FG then layer etc, very messy.

Where as with bagging it you lay the FG in the mold seal it in a big vacuum bag and use a pump to suck all the air out. The difference in pressure between the atomosphere and zero pressure vacuum is used to pull resin through the FG. If you get it right it can save time and up quality.

[AshG]

Originally Posted by MikeB

its less labour as Mark says, I'm no expert but with a traditional mould you have to apply the resin by hand then layer the FG then layer etc, very messy.

Where as with bagging it you lay the FG in the mold seal it in a big vacuum bag and use a pump to suck all the air out. The difference in pressure between the atomosphere and zero pressure vacuum is used to pull resin through the FG. If you get it right it can save time and up quality.

yep thats all well and good but you need a significant amount of heat to set of the curing process on prepreg, the nature of its design is that you warm it up to make it flexible to shape into the mould then you bag it, stick it in the oven which starts the curing reaction. the epoxy is already in the matting the vacuum have very little effect on pulling the resin through as its already in the matting, the true reason for vacuum bagging is that it pulls the matting right into the mould and eliminates all the micro air bubbles in the resin. (epoxys are very prone to bubbling). if you don't need the ultimate strength in the part you are much better off using a polyurethane resin as its a lot less prone to problems.

[MarkB]

Originally Posted by AshG

yep thats all well and good but you need a significant amount of heat to set of the curing process on prepreg, the nature of its design is that you warm it up to make it flexible to shape into the mould then you bag it, stick it in the oven which starts the curing reaction. the epoxy is already in the matting the vacuum have very little effect on pulling the resin through as its already in the matting, the true reason for vacuum bagging is that it pulls the matting right into the mould and eliminates all the micro air bubbles in the resin. (epoxys are very prone to bubbling). if you don't need the ultimate strength in the part you are much better off using a polyurethane resin as its a lot less prone to problems.

It's not going to be prepreg as nobody will pay the price for what is essentially a budget Kit Car. I used that as an example of how the resin infusion process works.....it's bagged then a pump draws the resin through the mould creating an even spread of resin.

Never was any good at explaining myself....

[MarkB]

The other beast may well be prepreg though as that's not a budget car and unlike anything else so nowt to compare it to...

All in all there are 4 on the go so hope they don't get mixed up with each other......