1. #1
    Just been testing my new 2.2kw spindle, and this is the first thing I've done with it:

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    Anyone want one :naughty:?

    Backlash has caused the lettering to be a little off, but it's not really noticeable.

    It seems that carbon fiber is quite easy to cut with those cheap diamond burrs...
    I'll post a video tomorrow.

  2. #2
    Can i order one that says "MYCNCUK" please :whistling:

    Looking good so far though, another member wanted to machine fiber but wasnt to sure how well it would work as its a hard material, i guess this answers the question.

    Lee
    .Me

  3. #3
    Quote Originally Posted by Lee Roberts View Post
    Can i order one that says "MYCNCUK" please :whistling:
    Don't see why not, I'll make you one next time I go home - not got time now.

    Quote Originally Posted by Lee Roberts View Post
    Looking good so far though, another member wanted to machine fiber but wasnt to sure how well it would work as its a hard material, i guess this answers the question.
    I'll put some details here just in case he's listening!

    In the past I've had problems machining it because it is very abrasive. At first I tried a 4mm HSS cutter I think it was in my milling machine at 2150rpm. That worked, but after one small part the cutter was polished and ruined.

    Then I tried the diamond burr in the milling machine which worked very nicely leaving a smooth finish. However with the spindle speed limited to just 2150rpm, and this basically being a grinding operation I could only use about 60mm/min, if that. Not surprisingly it took forever - however the cutter lasted.

    Now with over 10 times the spindle speed it cuts easily. I trimmed the carbon sheet at 450mm/min (24000rpm), and cut the keyring out at 180mm/min. No doubt it would do more on a more rigid machine. I didn't want to push it since that's my last cutter...
    It still looks fine after cutting about 1m of carbon.

    Does anyone know where I can buy several of this type of diamond burr, not an annoying set with all sorts of shapes? I looked a while ago but could only find the latter for a reasonable price.

  4. #4
    Very smart Jonathan. What software did you use to create the text?

    Regards

    Ian

  5. #5
    Quote Originally Posted by Web Goblin View Post
    Very smart Jonathan. What software did you use to create the text?
    Thanks :)

    I used Techsoft 2D design, which I got from school, to draw it all. It's got some fonts which are composed of single vectors which makes them good for engraving.

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