1. #1
    Cut with a 1/8" end-mill using a profile cutting feature.
    I was very conservative with depth of cut in the hope that I'd avoid and delamination or tearing and get a neat finish on the edges and that seemed to work.
    I added a small chamfer manually with a diamond honing block.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by magicniner; 21-08-2016 at 09:35 AM.
    If you will not be swayed by logic or experience simply pick the idea you
    like best, but ask yourself why you sought advice in the first place and,
    for a simple life, perhaps consider not doing so in future

  2. #2
    I'm looking at cutting CF sheet for RC aeroplane bits (control horns etc...) and was going to use diamond burrs or PCB cutters as those seem to be the recommended tools....but if a standard end mill works might give it a go :)
    Neil...

    Build log...here

  3. #3
    Neil,
    I used single flute, (partly because I have a lot in stock in a variety of sizes and partly because they're easier to re-grind than a drill bit) so far 0.2mm depth per pass, my initial speeds & feeds were erroneous as I was actually feeding 4x the advance per flute I intended with no appreciable load on the cutter,
    Regards,
    Nick
    If you will not be swayed by logic or experience simply pick the idea you
    like best, but ask yourself why you sought advice in the first place and,
    for a simple life, perhaps consider not doing so in future

  4. #4
    hi Nick,
    did you use tabs or tape and glue?
    project 1 , 2, Dust Shoe ...

  5. #5
    Quote Originally Posted by Boyan Silyavski View Post
    hi Nick,
    did you use tabs or tape and glue?
    Boyan,
    Because I was only cutting 0.2mm per pass (which ought to keep cutting forces low) I used double sided tape to hold the carbon fibre composite down to a sacrificial 2mm acrylic sheet, which was in turn held down to an aluminium tooling plate with double sided tape,
    Regards,
    Nick
    If you will not be swayed by logic or experience simply pick the idea you
    like best, but ask yourself why you sought advice in the first place and,
    for a simple life, perhaps consider not doing so in future

  6. #6
    Here's the bits in which the test cut produces the internal aperture, I don't know what I'll do with the cut outs but they're so cute I can't put them in the bin just yet ;-)
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    If you will not be swayed by logic or experience simply pick the idea you
    like best, but ask yourself why you sought advice in the first place and,
    for a simple life, perhaps consider not doing so in future

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