Talk Composites - The Forum for Advanced Composites

Looking for help and info pls

http://www.talkcomposites.com/Topic22546.aspx

By Coxo - 1/10/2017 12:49:58 PM

Hi I am looking for help and some info to see where I went 
Wrong I made a mould and when I pulled it out  it looked like this 
By MarkMK - 1/16/2017 11:28:59 AM




Coxo (12/01/2017)
What do u mean by cutting into smaller  pieces 

Would that be on the second layer  and so on ? 


I meant possibly trying to cut each of the inner 'up and down' sections of the piece as separate pieces that overlap each other slightly and then doing the outer flange section also as a separate piece with some small cuts so that you could overlap it onto the pieces already laid. Done neatly, the joins could be almost seamless and this would allow you to get the weave of each section nice and straight and in a uniform direction. It would also help with getting the surface layer tight into the mould without the risk of bridging.

I'd also look to do something similar with the heavier backing layer, but you could afford to be a bit less exact with that as you'd only be trying to get it to lay down fairly tight onto the surface layer

It'd be fiddly on a relatively small mould such as that, but misting the fabric with spray-tack or, perhaps, using something like EC's Profinish will help keep your cut lines sharp

Done as a single surface layer it looks nigh-on impossible to achieve a neat looking finish