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Filing/cutting carbon fibre?

Discussion in 'Downhill & Freeride' started by - seb, Mar 29, 2008.

  1. - seb

    - seb Turbo Monkey

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    I need to move my outer MRP plate to a position where unfortunately the crank arm is in the way. To get aroung this I need to cut/file about 1cm x 4cm of the CF away.

    Basically I need to cut this sort of shape out of it: http://www.chainreactioncycles.com/Images/Models/Full/3334.jpg

    I'm sure I've read in the past that carbon fibre is nasty ****, carcinogenic and stuff?

    Ignoring that for the time being :-)imstupid:) how easy is it to cut/file, can I just treat it as if it were metal, or do I need to be careful not to end up cracking it etc?

    Any tips/advice welcomed!
     

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  2. - seb

    - seb Turbo Monkey

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    A bit of googling suggests that I really don't want to inhale any of the dust. I don't have a mask of any sort, so I'm thinking wear my DH goggles for my eyes, have a piece of fabric over my nose/mouth, and leave the hoover running with the nozzle right next to what I'm cutting?
     
  3. wysiwyg

    wysiwyg Monkey

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    Jus hold ure breath..

    Nah ull be fine, only bad if u breathe in the dust, use a fine toothed hack saw blade, and put some maskin tape over it to stop it splitting.
     
  4. - seb

    - seb Turbo Monkey

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    I believe though the dust is INCREDIBLY fine and gets everywhere? Can't get a hacksaw in where I need to be conveniently so will be Dremeling.
     
  5. 4xBoy

    4xBoy Turbo Monkey

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    You will breathe in a whole lot worse the that in most old buildings, anyways what you want to live forever?
     
  6. big-ted

    big-ted Danced with A, attacked by C, fired by D.

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    Go get one of those foam masks from homebase Seb. They're like, 2 pounds or something. And you can always remove a hacksaw blade at one end, thread it through the bashguard, then reattach, so that you can get where you need to with a hacksaw. Damnit man! Think outside the box! :P
     
  7. gonefirefightin

    gonefirefightin free wieners

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    wow, and all this time I have been using carbon fiber tooth picks?

    I thought they would clean faster than conventional wood ones....
     
  8. - seb

    - seb Turbo Monkey

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    Yeah I know that, hence why I said "can't get it there CONVENIENTLY". I'm far too lazy for that. Plus I'd need to buy a much finer blade than I have.

    Too lazy for that too it seems, 5 minutes later, hoover in left hand, dremel in right, bashguard clamped in bike stand and the job's done ;D

    (And yeah, I'm sure the dust went in one end of the hoover and out the other! It's CRAZY fine, looks like smoke)

    Now, onto the next problem, can't find any chainring spacers, and none of the shops around here have any, gah!
     
  9. joelsman

    joelsman Turbo Monkey

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    the vaccuum is a very good idea, a couple layers of fine cloth would work fine over your mouth for the the amount of dust you will make. also carbon dust is itchy, not as bad as fiberglass dust. use clothes you don't like and wash them seperately a couple times, if you get dust on them. wearing white will show you how much didn't go into the vaccuum. latex or similar gloves would be nice too.
     
  10. joelsman

    joelsman Turbo Monkey

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    oops too late.
     
  11. - seb

    - seb Turbo Monkey

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    10mins and an old chainring and problem solved. Dremels rock :)
     
  12. kuksul08

    kuksul08 Monkey

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    Its not really that big of deal. It's just carbon and epoxy. You do a lot worse going in old buildings like someone said, or riding in a dusty area.