Using Vacuum for covering parts in CF.


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fibernoob
fibernoob
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Hi all.

I am having some trouble with the covering of a complex part.  (Automotive gear lever surround) 
The CF Fabric is not responding well to the contours and hole in the center.  Lifting with resin etc etc....

I have tried a quick method using vacuum bagging material and the pump ...  It seems to be ok so far..but  haven't seen much info on doing things this way. 

Just curious to know if anyone else has tried this.

Im still testing the best way to adapt the fabric to the part ...but it seems like a possible shortcut to covering complex parts  

  • Cover the part in CF Fabric 
  • Cover part with Resin
  • Cover wet part with peel ply 
  • Set in bag and apply vacuum.
  • After part has dried ... sand the marks from the peelply using thin sandpaper....
  • Apply normal layers of resin as finishing coats.

Edited 8 Years Ago by fibernoob
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MarkMK
MarkMK
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It might also help to attach a temporary flange to the inner edge of the part to give the fabric some additional surface to grip to. Making this flange follow the angle of the lip would likely make the fabric less likely to want to lift, especially if you're currently trying to fold it around the inner circle

I wouldn't be averse to the idea of using separate pieces of fabric for the lower sides of the parts also. This will leave an overlap to deal with in your finishing, but would allow you to put some small cuts in the corners of your main piece of fabric which will help maintain the weave alignment on top and, perhaps, ensure there's less 'pull' on the fabric when trying to get the area around the centre hole to conform. If the fabric's cut and placed neatly, I'm sure that a great finish is possible
fibernoob
fibernoob
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MarkMK - 1/19/2018 6:01:22 AM
It might also help to attach a temporary flange to the inner edge of the part to give the fabric some additional surface to grip to. Making this flange follow the angle of the lip would likely make the fabric less likely to want to lift, especially if you're currently trying to fold it around the inner circle

I wouldn't be averse to the idea of using separate pieces of fabric for the lower sides of the parts also. This will leave an overlap to deal with in your finishing, but would allow you to put some small cuts in the corners of your main piece of fabric which will help maintain the weave alignment on top and, perhaps, ensure there's less 'pull' on the fabric when trying to get the area around the centre hole to conform. If the fabric's cut and placed neatly, I'm sure that a great finish is possible

Thanks Mark. 

Sometimes its just those small things that can mess everything up.

 I have considered using some fabric in the inner hole as you have mentioned.    

Thanks for the feedback. 

GO

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fibernoob - 8 Years Ago
scottracing - 8 Years Ago
fibernoob - 8 Years Ago
Interloper393 - 8 Years Ago
fibernoob - 8 Years Ago
Hanaldo - 8 Years Ago
fibernoob - 8 Years Ago
MarkMK - 8 Years Ago
fibernoob - 8 Years Ago
fibernoob - 8 Years Ago
Hanaldo - 8 Years Ago
fibernoob - 8 Years Ago
Interloper393 - 8 Years Ago
fibernoob - 8 Years Ago
Interloper393 - 8 Years Ago
             Nice parts! Well done.
fibernoob - 8 Years Ago
Interloper393 - 8 Years Ago
MaksE55 - 8 Years Ago
fibernoob - 8 Years Ago
MaksE55 - 8 Years Ago
Hanaldo - 8 Years Ago
MaksE55 - 8 Years Ago

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