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  1. #1
    Join Date
    Aug 2013
    Location
    Montmorency Victoria
    Posts
    554

    Default Compound Mitre Saw ... sliding vs fixed for accuaracy of cut

    Hi all,

    I would appreciate any comments on whether the fixed CMS is better for accuracy than a sliding CMS ... AND if a 10 inch is more or less accurate than a 12 inch

    My old 10 inch Ryobi sliding CMS is worn out and has lost its ability to hold its settings well .... and is due for replacement.

    I am looking for a mitre saw primarily to do mitre cuts and to trim down large wood for finishing on the table saw. I wont leave the workshop

    I am looking at the DeWalt double bevel range and in particular the 10 inch sliding DW 717, sliding DWS 780 (12 inch) and fixed 10 inch DW 713.

    I can still use the old saw to cut down wide pieces for finishing on the table saw so I could manage with the non-sliding version .... it really comes down to accuracy.

    Any feedback would be helpful

    Thanks

    Rob

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  3. #2
    Join Date
    Nov 2010
    Location
    Perth W.A
    Posts
    720

    Default

    Technically a fixed CMS would be more accurate as any sliding mechanism, no matter how rigid has a degree of flex to it.
    It all depends on the width of cut you need to make, sliding CMS saws can usually be locked when cuttin narrow material drop saw fashion.
    A lot is going to depend on price and quality of the machine as to which is less or more accurate.

  4. #3
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    4,470

    Default

    Whith this type of saw the bottom line is price you get what you pay for, check it thouroghly in the shop see what moves and what dosen't move

  5. #4
    Join Date
    Apr 2012
    Location
    tasmania
    Age
    58
    Posts
    116

    Default

    I have both the DW713 and DWS 780.
    In my opinion the 780 is a far better saw and much more accurate than the 713.
    I use both these saws on site and use the 713 for framing and the 780 for all fine fit out work. The 780 is very heavy and would suit perfectly a workshop situation

  6. #5
    Join Date
    Jan 2008
    Location
    Central Coast NSW Australia
    Posts
    1,136

    Default

    I have recently bought the DWS 717 SCMS and am delighted with it. I too was concerned about possible flex when the blade was fully extended. It's not an issue at all. I guess a drop saw will have less potential for flex as time goes by, but the slide function gives me a whole lot of other options. The 10" blade is all I'll need. It was accurate out of the box and simply cuts perfectly.

    TT
    Learning to make big bits of wood smaller......

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