Anyone know anything about C/F?, I'm going to build a C/F targa top. |
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Anyone know anything about C/F?, I'm going to build a C/F targa top. |
Borderline |
May 6 2010, 05:48 PM
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Senior Member Group: Members Posts: 720 Joined: 8-February 05 From: San Juan Bautista, CA Member No.: 3,577 Region Association: Northern California |
As I have a better understanding of how flexible the 914 is, I'm planning on building a C/F targa top and rigidly mounting it to the chassis. My question is: how many layers do you think I need to get a reasonable amount of structural stiffness. I've ordered some 7oz plain weave that is about .015" thick. Right now I'm thinking of 5 layers: 3 layers with the weave aligned with the sides and 2 layers with the weave at a 45* angle, alternating layers. This should yield a thickness of over .075" which I would think would be a good start. As this is my first attempt at C/F and wanting to achieve strength and stiffness, I would like some advice from someone with C/F experience.....
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'73-914kid |
May 6 2010, 08:05 PM
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#2
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Senior Member Group: Members Posts: 1,473 Joined: 1-November 08 From: Vista, CA Member No.: 9,714 Region Association: Southern California |
For any structural intergrity to provide stiffness, the part would have to be vaccuum bagged, and layed up with quality resins. The problem you are going to find, is that carbon fibre flexes. It is not a super rigid, cure all material... It would need steel inserts to provide any real noticable difference from the fiberglass original top.
I say, if you're looking for a stiffener, find a steel roof, or put in a full cage and tie into the rear sail panel and front A pilar.. |
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