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IndustryArena Forum > WoodWorking Machines > DIY CNC Router Table Machines > Leaving lip on pocket rabbet joints?
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  1. #1
    Join Date
    Dec 2011
    Posts
    45

    Leaving lip on pocket rabbet joints?

    I'm using vectric aspire and a pocket operation to do rabbet joints. I've done a bunch of these on MDF and they came out good but I'm doing plywood now and all of a sudden I've got a .03" lip left between the pocket edge and the profile cut. Definitely not a machine issue, my bit seems fine, kind of clueless why this lip is being left here. Any ideas?

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  2. #2
    Join Date
    Dec 2011
    Posts
    45

    Re: Leaving lip on pocket rabbet joints?

    Upon measuring it seems to have cut the pockets 1/16" to small all the way around. hmm

  3. #3
    Join Date
    Mar 2003
    Posts
    35538

    Re: Leaving lip on pocket rabbet joints?

    What kind of machine is this? Are you climb cutting, or conventional cutting?
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  4. #4
    Join Date
    Dec 2011
    Posts
    45

    Re: Leaving lip on pocket rabbet joints?

    Quote Originally Posted by ger21 View Post
    What kind of machine is this? Are you climb cutting, or conventional cutting?
    it's my diy router. all the outer profiling in this toolpath was dead on perfect. just these pockets and some of the inside profiling is smaller than intended or shown in aspire. climb cutting. would that cause this? I have thought about switching to conventional

  5. #5
    Join Date
    Mar 2003
    Posts
    35538

    Re: Leaving lip on pocket rabbet joints?

    I can't really tell what the issue is by looking at the pictures.
    If ther's any deflection in your machine, climb cutting can cut smaller than intended.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

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