Thanks guys,
Mr C has a lot on his plate at the moment but he has made his own bed by selling a product that had not even been born. I wish him all the best with his project....

As for the infusion well I've made 5 rear wing halves. 2 with a gel coat as I want to include graphics and 3 straight infusion. the last 2 I had perfect success with 1 gel coat spray ed into the mould graphic applied, followed by the stack and straight infusion. one other reason for the gel coat use was for uv protection, As epoxy has limited uv protection. The gel coat used is an epoxy compatible polyester and work ed well. I will 2k lacquer the the straight infusion s.
I'll post some more pics later.

Cheers

what are de pros and cons of using infusion over wet layup vacum bagged?

This car was completely done by me and my teammates in the past when we ere in engineering school. Completely done with infusion, the new teams now use prepreg with carbon molds and an autoclave since they have a sponsor to give them acces to the autoclave..
http://www.etsmtl.ca/getattachment/b8a3 ... 10-%281%29

The best advantage if you want my opinion is that it also let you make your layup all with dry cloth and place everything well and form your cloth to your mold with vaccuum before getting dirty (infusion is very clean, no drip anywhere), if you already have a pump,
I'd say you should start doing some tests since you only need some flow media and some tubing and clamps to get started (since you already have a setup for bagging wet layup). I guess you use peel ply as well? However, you need to calculate well the quantity of resin.

you need a resin with low viscosity also so it wet all the cloth well. repairing a missed part is doable with a partial bagging and a second infusion but the look is affected a lot most of the time.

I never bagged wet layup parts since we only did the molds with wet layup. But just using wet layup is a hell of a dirty job, resin is dripping everywhere and i hate that

Note that i'm an electronic guy not the best composite guy but i understand a lot since i participated in the fabrication of these cars.

Thats right Rotule, nice set of wheels by the way.

Infusion also reduces the possibility of air voids and an accurate carbon resin ratio, as a rule of thumb 50/50 - 60/40 carbon/resin. it does take practise for sure, right flow rate and path of resin flow. normally recomend the shortest route.
in the above pic i went the longest path for the resin flow as it was a small part. on the last two i went the shortest route and it was fine.
i did have issues with styrene still present in the mould. as i was putting it straight in the oven at 50c the styrene was making the epoxy stick slightly to the mould. i found this out through the supplier and recomended curing at 20c 24hours then post curing once out of the mould. it worked after first time after 2 previous attempts. it was nothing major but i wanted it perfect.
see att pic



All fun and games but hopefully worth it in the end

thanks these wer custom designed and machined by students

After the infustion, we used blankets over the molds and put some heat guns shooting hot aire to the mold (under the blanket) never leave unwatched because it could catch fire but it worked great!

These a nice results that you got

I think the Nugget has some concave in the tail? If so it's hard to mount a plate style foil to it as the base it's flat. You want all the surface area of the foil plate to contact the board.

Iseen a lot of picture of nuggets with foils installed on, just search the net a little bit and you will find

Edge19,
Wow the finish of infusion is top notch!!
keep pics coming!!
have you glued the top and bottom?
Do you use a filler inside the wing or a solid laminate?
Pedro

Yes, no problem using a Nugget, and it has good proportions IMO.

Strapless, you most likely want a smaller board, with less volume (I do), but strapped, a bigger board is fine especially for initial hydrofoiling

You could make an "adapter" so the flat plate will have a slight curve, and then you have solved the problem if it has a significant amount of curve/rocker

PF

HI RV:

Dropped in on the forum this morning for my cup arm chair entertainment.

I was once doing the same thing your doing now with fiddling around with molds and wings. It was about 15 years ago. Keep up the good work. Thanks for watching out for other people also with regard to getting warned and ripped off.

Carafino does not rip anybody off. If we were ripping off people we would not spend our time on this forum. We would have just shut down the whole thing already. Were just late because shit happens and we have to deal with it.

My family reads your post and all the other negative ones, they say to me why do I continue to do this when people out there are writing such disrespectful comments. My mother reads your posts and others and she says to me, Son, you created this sport and brought it so far, why? for people to disrespect you, beat you up on the internet.

She is right, all the hard work is for nothing. As I mentioned in my video, once we finish our stock, we will no longer make foils. Much of that is because of guys like you and your comments. The money part is not important, the fact that everything I have done, means nothing.

So good luck with your projects and the molds. What you need to be careful of when molding the way you do is that you are not ensuring a 100% bond in the process because you do not have enough compression on the mold after you lay it up. You should also be heating that mold to ensure the cure while the mold is closed with the material inside. Hand layup lamination with a couple of clamps looks nice but it will crack and break in short time due to stress loads. You need to create that wing in prepreg composite material.


Regard, Carafino