Layup issues
Posted: Fri Jul 24, 2015 3:26 am
Hello everyone
I posted earlier about an intended build with the following dims
2mm - 11mm - 2mm
The ski is 1800 long and 140-100-120
15.5oz biax
3.5oz UD CF (full width)
Core (11mm)
3.5oz UD CF (full width)
15.5oz biax
fabric
Topsheet
I have now done this and the build went well, but came out too soft - next time I would go for 2.5 12 2.5. As a result I had to re-press the ski with another strip of 100mm wide 3.5oz UD CF. The second pressing and the addition of a veneer top sheet have resulted in a very nice flex and stiffness. So much so I built a second pair for my son. However and as you will have spotted the layup is asymmetrical and there may be issues ahead.
I am in the process of making a third pair of skis for my daughter and would like to avoid an asymmetric layup. Her skis will be the same core material but the dims are:
2-10-2
Ski 1700 130-88-119
My materials are limited to the biax glass and uni Cf that I have. Any suggested layups?
I was thinking perhaps extra gf on both sides or perhaps a smaller (50mm) carbon strip on both sides
Any suggestions gratefully received
I'll post pictures later on when all the skis are done (I am also make a full on, full rocker powder ski).
Thanks
Gilo
I posted earlier about an intended build with the following dims
2mm - 11mm - 2mm
The ski is 1800 long and 140-100-120
15.5oz biax
3.5oz UD CF (full width)
Core (11mm)
3.5oz UD CF (full width)
15.5oz biax
fabric
Topsheet
I have now done this and the build went well, but came out too soft - next time I would go for 2.5 12 2.5. As a result I had to re-press the ski with another strip of 100mm wide 3.5oz UD CF. The second pressing and the addition of a veneer top sheet have resulted in a very nice flex and stiffness. So much so I built a second pair for my son. However and as you will have spotted the layup is asymmetrical and there may be issues ahead.
I am in the process of making a third pair of skis for my daughter and would like to avoid an asymmetric layup. Her skis will be the same core material but the dims are:
2-10-2
Ski 1700 130-88-119
My materials are limited to the biax glass and uni Cf that I have. Any suggested layups?
I was thinking perhaps extra gf on both sides or perhaps a smaller (50mm) carbon strip on both sides
Any suggestions gratefully received
I'll post pictures later on when all the skis are done (I am also make a full on, full rocker powder ski).
Thanks
Gilo