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  1. #1
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    Default Router/Spindle bits for wood and aluminium

    I wrote the following email to CTC tools because I wanted to know what type of bit was best for CNC work. Should I get solid carbide or would I be better off with the TiAIN coated bits etc.



    On Tue, Nov 9, 2010 at 1:56 PM, Bob Willson <xxxxxxx@optusnet.com> wrote:
    Hello, I want to order some carbide end mills in ball nose and flat
    They will be mainly used with MDF, timber and some aluminium in a CNC machine.
    Could you please tell me what the best type of mills to order for this would be.

    Thank you

    Bob Willson

    They replied

    Hello Mr. Willson,

    We have carbide cutters for aluminium. That would be our product no. H09 in the web shop www.ctctools.biz

    We don't have anything dedicated wood. You can try the aluminium cutters but the helix angle for wood is recommended to max. 30 degree and the angle of the type we sell for aluminium is bigger than that

    Best regards
    Heine Johst
    CTC Tools

    Can anyone recommend a particular type or hardness or helix or whatever. I want to buy cutters in a 2mm, 3mm, 4mm, 5mm, and 6mm size in both ball and flat

    Bob
    Bob Willson
    The term 'grammar nazi' was invented to make people, who don't know their grammar, feel OK about being uneducated.

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  3. #2
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    Default

    Carbitool is all I use and I have tried many different type most were crap I am sure you will be able to find a sawdoctor that can also sharpen the bits I gave you I would post on the wood router forum as well I faintly remember someone at westend that was a reseller and could sharpen as well.

    Just remember cheap bits will give you cheap results and wont last as long as the good bits.


    CARB-I-TOOL
    Australian router bits and cutters at apworkshop.com.au


    I like to move it move it, I like to move it.

  4. #3
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    Default

    Peacock saws (west End) can resharpen and they also sell Carbitool bits. In fact, the link that you gave for Australian router bits and cutters at apworkshop.com.au uses the same graphic as on the Peacocks site. I will get those bits resharpened there.

    I agree that our Oz made stuff is very good (even though it probably is not made in Oz) but the point is that it is 10 times the price of similar items from CTC.

    So I can buy 10 experimental bits for the price of one.

    I am not disputing the quality of the Carbitool bits but I simply cannot justify spending another $500 - $600 for 10 bits. Of course, if you were to give me those bits for free ...

    Bob
    Bob Willson
    The term 'grammar nazi' was invented to make people, who don't know their grammar, feel OK about being uneducated.

  5. #4
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    Perth WA
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    Default

    The problem with re-sharpening is that it reduces the diameter. Probably OK for most work but may present a problem with close tolerance fitting as error doubles with things like inlays. As long as you are aware of it you can compensate with your software design.
    Cheers,
    Rod

  6. #5
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    Feb 2008
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    Australia
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    Default

    I haven't done much cnc routing myself but when I was the Straight 2 Flute carbide cutter router bits did a very neat job, these are just the standard bits you would run in a manual router.

    But I was told MDF is not a suitable material because its hard + that dust is nasty anyway.


    I stocked up on 1/4" bits ages ago from Saw & Bits Online Store!, Heavily Discounted Clearance Prices



    Anyone feel free to correct me if they are not suitable for a CNC router.

  7. #6
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    Default

    Quote Originally Posted by Ch4iS View Post
    I haven't done much cnc routing myself but when I was the Straight 2 Flute carbide cutter router bits did a very neat job, these are just the standard bits you would run in a manual router.

    But I was told MDF is not a suitable material because its hard + that dust is nasty anyway.

    I stocked up on 1/4" bits ages ago from Saw & Bits Online Store!, Heavily Discounted Clearance Prices

    Anyone feel free to correct me if they are not suitable for a CNC router.
    Chris if you dont mind noise and going slow then yep no problems they can be used but once you have tried a real bit made for the application you really appreciate a quality bit, mdf is a worry I was blocked up and had asthma problems but a dusty externally vented will fix that I hate MDF but its good to work with.

    Metal cutting bits they can be used but noise is a problem as well as speed and finish and cut depth as they get blunter quicker and then they just snap oh isn't that fun at the end of a 2hr job.

    No worries Bob get them sharpened then bring them back when I talked to Carbitoool they advised they make them and can make to order quick turn around so they are an Aussie product.

    Do be prepared for a number of questions if you call them though if your not sure what bits to get.

    My problem was noise as well as the job lifting off the table with some of the cuts I was doing I had no way to clamp these inside cuts I was doing.

    They told me to try a single down cut flute so I got one then two then three thats all I use for that particular product I was making and it was excellent crapped all over everything else so it does come down to application one bit wont fill all.

    Have a look and search on the vectric forum you dont need to have the vectric product to join do a search I think you will find some more suppliers etc in the states that are cheaper some of the people on the forum buy from carbitool as well.
    I like to move it move it, I like to move it.

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