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  1. #16
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    Mar 2018
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    Melbourne, Australia
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    Quote Originally Posted by Mr Brush View Post
    I'm curious - if you did some test cuts to get the perfect bit height and fence position, and put in some kind of hard stop so you can go back to that exact fence position repeatably, could you then take multiple shallow cuts moving the fence each time to creep up on the full cut (when fence hits the hard stop)?

    Also, is there a size of these bits that would be suitable for tabletop thickness timber (30mm plus), and is this a good joint for making up large tabletops from several boards?

    Cheers
    I simply put a pencil mark at the back of each end of the fence for future reference, but this only works if the material is exactly the same thickness, and it "seems" you can make as many passes as you like, but the last one of course is the critical one IMO. Others may know a lot more than I do. I have found one thing though that machining the end grain is a lot harder and the cut not nearly as smooth.

    If you look at the Arden bits they have three sizes, up to 17.14 mm, 19.05mm and 30.16mm thickness, I would think you would need a pretty powerful router to use the biggest one or plan on making lots of small cuts.

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  3. #17
    Join Date
    May 2011
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    Albury
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    Quote Originally Posted by cava View Post
    So should we be buying 'Industrial' quality for the longer life span of the product, or is it the reverse and the 'Professional' is the better option?
    I suspect either would be fine. Differences are most likely the quality of the steel in the shaft, carbide quality, non-stick finish etc. It's when you get to the cheapies that the price really compromises the quality of the components and the manufacturing.

  4. #18
    Join Date
    Feb 2016
    Location
    Canberra
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    5,124

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    Quote Originally Posted by HypnoToad View Post
    I watched this video and the guy is right if you set the height first then worry about the depth of the fence it's a whole lot easier.

    https://www.youtube.com/watch?v=mgMRSB0tDxc
    Outstanding video!

    I'll give this technique a go tomorrow

  5. #19
    Join Date
    Nov 2007
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    Mt Crosby, Brisbane
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    FWIW I bought a couple of cheapies off ebay. I used one of them to end join pine boards into longer lengths. Yes they are a pain to get the height right. You can't blame the bit for that. I got some chipping on the end grain of pine. In my experience that's hard to avoid. I joined quite a few boards, probably 2 dozen joins. The bit still works fine. I spun it slow. I did not spend a lot of time perfecting the process as it was one small step in a much bigger project. It is possible dearer bits would perform better but I am happy with what I bought. This is who I bought from. No affiliation apart from happy customer..usual thing...

    Super Carbide Tools | eBay Stores
    I'm just a startled bunny in the headlights of life. L.J. Young.
    We live in a free country. We have freedom of choice. You can choose to agree with me, or you can choose to be wrong.
    Wait! No one told you your government was a sitcom?

  6. #20
    Join Date
    Nov 2007
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    I realise this is an old thread but I thought this might be useful for some.


    Setting up lock mitre bits is a devil of a job. I expect the infinity setup jigs would work well but they are obscenely expensive, even from the USA direct let alone timbecon.


    I am a metalworker by trade. If you have a fairly square combination square and vernier caliper you can reproduce the function of the various tool setting jigs, table saw blades etc, and of course this bit. I now have a dial gauge vernier as I can't see as well as I used to but it was cheap enough on ebay.


    The gentleman in this video explains how to set the bit from first principles. No specific bit nor jig required. He is using a shaper and digital calipers but it's easy to follow and he explains the process IMO better than the many other videos on youtube I have seen.


    Lock Miter Setup Tutorial - YouTube


    I hope it is of use to someone.
    I'm just a startled bunny in the headlights of life. L.J. Young.
    We live in a free country. We have freedom of choice. You can choose to agree with me, or you can choose to be wrong.
    Wait! No one told you your government was a sitcom?

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