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PostPosted: Sun Feb 03, 2013 3:02 am 
Retro Guru
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Joined: Fri Jan 13, 2012 2:28 am
Posts: 1057
Location: Near Gatwick
cup would need a resin you can drink from?
Only non bike bit I ever made that I can think of is a small
dustpan for the swarf tray on the lathe, it was really neat
and someone nicked it. Oh I did make a paper knife but that
was chopped out of the scrap from an edge.
Compound curves aren't difficult, but you can't make them
to tight, twill is easiest on curves.
Here's my first mold and a guard pulled from it, multi part molds
are often best and if you don't have lot's of draft it can be difficult
to get parts out of a mold. The mold is three piece, the seams are
where the original guard had lines molded in so any marks didn't matter,
this comes out of the mold relatively easy.
A pic of a headlamp shell, it's copy of some old jap headlight shell,
I made them for a quite a few bikes I built for people. This one is
two pieces of plain weave but it was possible to do it in one piece of twill fabric.
The mold is one piece and cos of the bit at the back with virtually no draft it's
pretty difficult to get the parts out of the mold.

Someone mentioned carb trumpets, I did make some for a commando, no pics of
them. I have pics of the filter inlets I made for a ZXR, they were needed as the
frame and tank meant he couldn't have an air box. I carved them out of styrofoam,
molded over it and then melted the foam out with thinners.


Attachments:
File comment: Kwakersaki 750 filters
filter3.jpg
filter3.jpg [ 19.06 KiB | Viewed 126 times ]
File comment: GSXR 11L front guard
guard2a.jpg
guard2a.jpg [ 43.01 KiB | Viewed 126 times ]
File comment: 350LC? headlamp shell
hshell2h.jpg
hshell2h.jpg [ 6.36 KiB | Viewed 126 times ]
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PostPosted: Sun Feb 03, 2013 12:15 pm 
Retro Guru

Joined: Sun Jun 20, 2010 4:39 pm
Posts: 1455
those inlet manifolds look great!!


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PostPosted: Sun Feb 03, 2013 4:07 pm 
retrobike rider
retrobike rider

Joined: Thu Apr 17, 2008 1:24 am
Posts: 7563
Location: Manchester
If you want practice then my fish pond needs lining. It was going to be fibreglassed but carbon would look much better!


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PostPosted: Sun Feb 03, 2013 7:13 pm 
Special Retro Guru
Special Retro Guru
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Joined: Sun Apr 29, 2007 6:22 pm
Posts: 5946
Location: busy forgetting how to edge flip on a 11x11 monster cube///...
a really cool carbon moulded seat thingy for my recumbant////oh pleeeeease...my present one lets the look of the bike down


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PostPosted: Mon Feb 18, 2013 8:05 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Tue Nov 03, 2009 2:43 pm
Posts: 12370
Location: At the pinnacle of fuckwittery
Day1

Hell of a lot of theory, followed by a couple of hours of laying up 8-plys of prepreg sheets..

1st sheet down
Image

Got the other 7 plys down with a lot of effort and manipulation.. Tomorrow we're autoclaving it 8)


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PostPosted: Mon Feb 18, 2013 8:42 pm 
eBay Outing Master
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Joined: Sat Nov 21, 2009 3:53 pm
Posts: 8000
Now..that is either a carbon finger nail set or you sir are moulding something around something very personal :lol:


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PostPosted: Mon Feb 18, 2013 8:42 pm 
B.o.T.M. Winner / Gold Trader
B.o.T.M. Winner / Gold Trader
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Joined: Fri Jul 08, 2005 7:45 pm
Posts: 7176
Location: CAMBRIDGE .. UK
When I was 16 I made a water sprinkler from alloy and carbon fibre.

Still have it if you fancy a pic, lol

Doug


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PostPosted: Mon Feb 18, 2013 9:06 pm 
Gold Trader / MacRetro rider
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 18215
Location: Sunny Glasgow
RobMac wrote:
What about my aerodynamic time trial helmet?



You truly are disgusting Rob to suggest such a thing. :shock:


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PostPosted: Mon Feb 18, 2013 10:05 pm 
Special Retro Guru
Special Retro Guru
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Joined: Sun Apr 29, 2007 6:22 pm
Posts: 5946
Location: busy forgetting how to edge flip on a 11x11 monster cube///...
nice job so far....cof bike seat cof...


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PostPosted: Tue Feb 19, 2013 7:04 am 
Retro Guru
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Joined: Fri Jan 13, 2012 2:28 am
Posts: 1057
Location: Near Gatwick
GT-Steve wrote:
Day1

Hell of a lot of theory, followed by a couple of hours of laying up 8-plys of prepreg sheets..

1st sheet down
Image

Got the other 7 plys down with a lot of effort and manipulation.. Tomorrow we're autoclaving it 8)


Looks good stuff to work with. I could only dream about cut edges like that with wet lay up.
I never had a go with prepreg.


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