Talk Composites - The Forum for Advanced Composites

Carbon Fiber Goalie helmet (field hockey)

http://www.talkcomposites.com/Topic1066.aspx

By matthieutje65 - 3/19/2012 1:13:41 PM

Hi guys,

I'm going to make a Carbon Fiber replica of a Keeper helmet 

http://www.talkcomposites.com/Uploads/Images/c5b69ec7-3b1b-4cfd-b0a3-cad0.JPGhttp://www.talkcomposites.com/Uploads/Images/853f1957-7024-4864-80fd-4160.JPGhttp://www.talkcomposites.com/Uploads/Images/0408d9dc-60d8-47e3-afcc-ea0f.JPG
It will be a Gelcoated mould and so on...thats not the problem I have...

The problem is:

The helmet I have now is made from PE (I guess it's just thermoformed)
I will need some carbon fiber and reinforcement but I don't really know what Lay-up I will need?
how many sheets of Carbon fiber, Fiberglass inbetween, some core, special resin,...

the helmet I have now weighs around 700grams
I want to make sure the helmet is stong enough so my goalkeeper won't get hurt :p 

If i'm not clear enough or if you have more questions please ask and I'll answer them as fast as possible!

kind regards Matthieu Libeert
By matthieutje65 - 8/20/2012 10:02:28 PM

it's been a while,

I haven't been working on the helmet since a long time but now i'm going to finnish it Smile
I will need some advice...

I didn't used any gelcoat this time. 
The problem I have are some dryspots. I've seen the movie with the kayak on how to repear small areas.
Should I put some extra resin to fill the dry spots, then sand the whole helmet, then use a clearcoat and pollish?

I won't use the helmet because I've made a "little" designmistake in the beginning of the project; I've used the "strongest resin"
I should have used a flexible resin to absorb the impacts on the helmet. Still have the mould so will be for the next helmet Smile

Can someone tell me how I should finnish it?  
heres a videotutorial on how the helmet was made.