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Thread: Cutting mortises

  1. #1

    Cutting mortises

    I need to cut mortises in Amazon Rosewood. The mortises are 1" by 2" by 1.5" deep. I have the Delta Hollow Chisel Mortising machine but never used it for anything as large as these mortises. Should I clean out the mortises with a Forstner bit on a drill press first to ease the load on the machine?

    Thanks for all advice and suggestions, DKT

  2. #2
    Join Date
    Oct 2006
    ABQ NM
    I think the Forstner bit idea would be a good one, especially on wood as hard as rosewood.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

  3. #3
    Join Date
    Nov 2006
    Delton, Michigan
    i second vaughns advice.. but you do need to have enough for the bit to start in, if you try to just shave off a corner you could have trouble in the hard rose wood so take it easy dont force it.
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  4. #4
    Join Date
    Oct 2006
    somewhere east of Queen Creek, AZ - South East of Phoenix
    When I do any large mortise's (or is it mortisi) like you are talking about I just drill em out and take out the waste with a chisel. When I did the commision for the church I needed 1" wide mortises and found it was just quicker to do it that way and far more accurate. Also when I am working with em that size I mortise both pieces and use a floating tenion. You might also consider cutting the mortises with a router and use floating tenions.
    "There’s a lot of work being done today that doesn’t have any soul in it. The technique may be the utmost perfection, yet it is lifeless. It doesn’t have a soul. I hope my furniture has a soul to it." - Sam Maloof
    The Pessimist complains about the wind; The Optimist expects it to change;The Realist adjusts the sails.~ William Arthur Ward

  5. #5
    Join Date
    Apr 2007
    No, not all of SoCal is Los Angeles!
    I'm with Don on both methods. Hog out the waste and dress up the edges and ends with a chisel or hog it out with a router on both parts for floating stock.
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    Any sufficiently advanced technology is indistinguishable from magic.
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  6. #6
    Join Date
    Jun 2008
    GTA Ontario Canada
    The joys of woodworking so many ways to skin the cat.

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