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  • Router chipout problem

    I have a router issue I can’t solve. I’m routing a roman ogee around the edge of a 1” piece of cherry. When routing the first edge at a corner I can use a backer block to prevent chip out.
    The problem is when I rout into the corner from the other edge. It seems I need a backer board with the mating image of the first ogee.
    Is my only choice to rout a mating backer board ?
    Thanks!
    http://www.get-powertools.com/

  • #2
    Re: Router chipout problem

    I think this page will give on some ideas,

    http://www.familyhandyman.com/DIY-Pr...s/Step-By-Step



    do the climb cut on the two edges, make few shallow cuts instead of a full depth cut, your putting less stress on the parts that would split/splinter,


    some times using the router in reverse motion it with the pull of the bit, instead of against the bit rotation, can help as your not pulling the wood apart but pushing up against the wood, one has to carefully doing this but on some fragile woods it can make a big difference,

    another tip is start on the mid point of the board (with the grain) ,so when you get to the end the full board is there to support the edge, not a routed out section and then follow around to the start point as shown in the above picture,
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    Last edited by BHD; 11-09-2010, 08:07 PM.
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    • #3
      Re: Router chipout problem

      Another point to remember when you are routing around an entire board, is to always start your cut on the edge grain. When you do this you will over cut the tearout created when you leave the edge grain and start on the long grain. The router bit "should" eliminate the tearout by creating a new cut on the long grain that will cut away the tearout.
      If you start your cuts on the long grain it means that you cut the edge grain corners last which could lead to tearout that you will not be cutting over.

      Try it on a scrap board (held down firmly) ... start by routing edge grain then move around to board until you end up where you started ... your edges should be fine even without any backer boards.
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      • #4
        Re: Router chipout problem

        You might also look at your bit. Is it sharp,chipped or gummed up, these will both affect performance. If you are in the market for a new bit you might look into Freud's quadra-cut bits. If they have one in the profile you need they are great at reducing chipout and burning.

        But all things being equal the most likely culprit is the order of operations, do your end grain first then the long grain as has been said, and don't try to hog it all off in one pass.
        "When we build let us think we build forever. Let it not be for present delight nor for present use alone. Let it be such work that our descendants will thank us for, and let us think, as we lay stone upon stone, that a time is to come when these stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our fathers did for us."
        John Ruskin (1819 - 1900)

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