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Author Topic: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread  (Read 552630 times)

Offline Shortround

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1710 on: Feb 14, 2018, 12:34:58 »
some progress pics from making the carbon fiber parts.

Offline CrabsAndCylinders

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1711 on: Feb 15, 2018, 15:56:07 »
It would be great if you could document as much as you can.  Do you have any advice on building with carbon fibre?

Brian
Lighter, Quicker, Faster.
ZX-14, 900F x 2, 1100F, R100, CBR600, SR500, GT500, RZ350, KZ1000 x 2, Moto Guzzi Lemans lll, CBX550, RD 350, 750 SOHC police special, RG250, TL1000R, GT750, KTM Super Duke 1290 R, Harris/Z-1, Norton 750 Commando, Green 77 KZ650

Offline Shortround

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1712 on: Feb 15, 2018, 16:30:25 »
It would be great if you could document as much as you can.  Do you have any advice on building with carbon fibre?

Brian

Advice? "Don't do it" LMAO

First off, I don't build bikes for a living, and I don't work with composites for a living. So don't think for one moment that I'm an expert. "Jocelynne" is the 3rd carbon fiber bike I have built. Mistakes are expensive. So heres what i learned.

1. you'll need a proper mold. any youtube video can help with that.
2. NO POLYESTER RESIN. except when making the mold
3. never use a paintbrush, always a squeegy when applying resin.
4. start small: hand layups on front fenders is good practice
5. easier to design a paint scheme and hide seams than try to make complex parts from one continuous piece


good luck



Offline Shortround

  • Posts: 485
Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1713 on: Feb 15, 2018, 16:31:36 »
this rear hugger is seamed at the 90 degree angle. if not you get weave distortion. if you look at the seat you can see the seams which is covered with the seat pan on the finished product.
« Last Edit: Feb 15, 2018, 16:34:17 by Shortround »

Offline CrabsAndCylinders

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1714 on: Feb 16, 2018, 00:22:43 »
Thanks for the reply.  Carbon fibre may be beyond my abilities :)
Lighter, Quicker, Faster.
ZX-14, 900F x 2, 1100F, R100, CBR600, SR500, GT500, RZ350, KZ1000 x 2, Moto Guzzi Lemans lll, CBX550, RD 350, 750 SOHC police special, RG250, TL1000R, GT750, KTM Super Duke 1290 R, Harris/Z-1, Norton 750 Commando, Green 77 KZ650

Offline Shortround

  • Posts: 485
Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1715 on: Feb 16, 2018, 12:04:41 »
Thanks for the reply.  Carbon fibre may be beyond my abilities :)

I'm sure you can handle it. it just takes time and $$$$. Its just a long process and really not worth it unless you're gonna pull several parts out of the mold. I took several tries at the start to pull a perfect part, and i still screw up a piece occasionally. the mold has to be perfect unless you plan on painting the piece.

Offline CrabsAndCylinders

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1716 on: Feb 16, 2018, 15:18:54 »
Well, I will try it.
Lighter, Quicker, Faster.
ZX-14, 900F x 2, 1100F, R100, CBR600, SR500, GT500, RZ350, KZ1000 x 2, Moto Guzzi Lemans lll, CBX550, RD 350, 750 SOHC police special, RG250, TL1000R, GT750, KTM Super Duke 1290 R, Harris/Z-1, Norton 750 Commando, Green 77 KZ650

Offline MotorbikeBruno

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1717 on: Feb 19, 2018, 15:11:28 »
I'm sure you can handle it. it just takes time and $$$$. Its just a long process and really not worth it unless you're gonna pull several parts out of the mold. I took several tries at the start to pull a perfect part, and i still screw up a piece occasionally. the mold has to be perfect unless you plan on painting the piece.

How do you keep things from curling over age.  When I was younger I played a bit with carbon fiber and fiberglass, seemed that after some time, they would slowly curl in on themselves. But maybe that was due to using Polyester resin? (I can't actually remember what I used it's been a while...).  Either way, parts and bike look fantastic. Great work!

Offline Shortround

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Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1718 on: Feb 19, 2018, 15:24:36 »
How do you keep things from curling over age.  When I was younger I played a bit with carbon fiber and fiberglass, seemed that after some time, they would slowly curl in on themselves. But maybe that was due to using Polyester resin? (I can't actually remember what I used it's been a while...).  Either way, parts and bike look fantastic. Great work!


You just canít use polyester resin with carbon. Well you can, but the working time is so short. Sounds like you used polyester or even vinyl ester epoxy. To much shrinkage, which is never a good thing. 😂  That stuff is made for boats. A couple of extra lbs doesnít matter on a 1000  lb hull. Which is why they use gel coat and a ton of resin to keep if from distorting. And stay away from surfboard resin. Most is non-blushing which translates to Pain-In-The-Ass.
« Last Edit: Feb 19, 2018, 15:28:40 by Shortround »

Offline Shortround

  • Posts: 485
Re: ** PICS OF MEMBERS RIDES ** - Official Before & After Thread
« Reply #1719 on: Feb 19, 2018, 15:31:00 »
This is Anabel; Jocelyneís sister