Author Topic: Carbon Fiber Limb Laminations  (Read 3332 times)

Offline Flem

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Re: Carbon Fiber Limb Laminations
« Reply #20 on: February 11, 2021, 09:30:34 AM »
Interesting! Would love to see some pictures of what you have made. Sound like you are using clear resin for visual appeal?

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #21 on: February 11, 2021, 10:01:26 AM »
Top to bottom
45/45 + UD Lamination
Italian Carbon with 90/0 on the Top
45/45 weave under clear Glass
All with very flat Paint Finish, so the Carbon does Not come to Shine that much.
But i use it for performance, Not for Looks.  :archer2:


Need to search for pictures of my self processed.
Did some Experiments with Kevlar/Carbon Hybrid for optics.
Cool looking, but very baaaad to Work with.

Online Roy from Pa

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Re: Carbon Fiber Limb Laminations
« Reply #22 on: February 11, 2021, 10:21:47 AM »
Those are sharp...

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #23 on: February 11, 2021, 10:39:03 AM »
Found a picture of the self-made Kevlar Stuff....







Offline Flem

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Re: Carbon Fiber Limb Laminations
« Reply #24 on: February 11, 2021, 11:53:31 AM »
Awesome :thumbsup:  Your bows look great. I have always liked the look of the carbon/kevlar blends.
Never seen it on a bow before, thanks for sharing the pics. Really fun to see somebody venturing into new territory. Are you doing a wet lay-up or vacuuming?

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #25 on: February 11, 2021, 12:03:46 PM »
Hand laminated wet Layup and pressed.
So no 100% perfect Result.
For perfect Results i would use a Vacuum Setup.

Online Longcruise

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Re: Carbon Fiber Limb Laminations
« Reply #26 on: February 11, 2021, 02:15:35 PM »
Hand laminated wet Layup and pressed.
So no 100% perfect Result.
For perfect Results i would use a Vacuum Setup.

How are you pressing it?  What glue?  Been fiddling around with this and am not sure if I should cook in advance or in the layup.   Some early experiments are telling me that pre cooking can leave some air pockets using EA40.
"Every man is the creature of the age in which he lives;  very few are able to raise themselves above the ideas of the time"     Voltaire

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #27 on: February 11, 2021, 02:39:32 PM »
I use a laminating resin, that is Provided by the Shop, where i buy my Carbon weave.
In Germany, so you won't buy this.
Pressed between two thick plywood Boards with Rubberplates.
Clamped.
Not in the oven.
Had no Problems with Air pockets.

Online Stagmitis

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Re: Carbon Fiber Limb Laminations
« Reply #28 on: February 11, 2021, 03:16:13 PM »
B-Js thats how I do it but with Aluminum strips and hard rubber
. I have a bunch of Kevlar I have always wanted to tinker with. Any trouble sanding the Kevlar?
Stagmitis

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #29 on: February 11, 2021, 03:35:07 PM »
Absolutely horrifying.  :biglaugh:
Won't use it again.
Cutting was awfull.
And when sanding it, the Kevlar fibers kept Standing Out of the Sides of the limb.
Had to "shave" it with a razor at the end.

Online Stagmitis

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Re: Carbon Fiber Limb Laminations
« Reply #30 on: February 11, 2021, 03:38:36 PM »
Thats what I heard but had to ask  :banghead: I do have an application I want to try that doesnt requre cutting or sanding  :biglaugh:
Stagmitis

Offline Buemaker

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Re: Carbon Fiber Limb Laminations
« Reply #31 on: February 11, 2021, 04:06:25 PM »
Interesting and bows look great. May I ask where you get your limb locking hardware?

Online B-JS

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Re: Carbon Fiber Limb Laminations
« Reply #32 on: February 11, 2021, 04:41:28 PM »
Ordinary Hardware.
Self cutting tread Inserts.
Stailness Steel screws and "Rosette". (The thick washers) don't know the english term.
I use two Pins to allign the limbs.

Online Longcruise

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Re: Carbon Fiber Limb Laminations
« Reply #33 on: February 11, 2021, 05:34:22 PM »
Fender washers I think.
"Every man is the creature of the age in which he lives;  very few are able to raise themselves above the ideas of the time"     Voltaire

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