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Thread: Angle grinder sander for slots and grooves

  1. #1
    Supporting Member Christofix's Avatar
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    Christofix's Tools

    Angle grinder sander for slots and grooves

    Hello,

    For a project I am working on, I need to be able to sand wood in narrow grooves. This is impossible by hand, which is why I came up with this solution. Hopefully this will help you if you have a similar problem.

    Greetings
    C


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    Andyt (10-18-2019), Jon (10-16-2019), mwmkravchenko (10-19-2019)

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    Content Editor
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    Thanks Christofix! We've added your Groover and Slotting Attachment to our Woodworking category,
    as well as to your builder page: Christofix's Homemade Tools. Your receipt:




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    Christofix (10-16-2019)

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    Supporting Member Frank S's Avatar
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    Frank S's Tools
    there is only 2 things that causes me concern one is the diameter of the disk is far too large for thst sixed rt angle grinder and 2nd would be the ultra high RPMs the grinder runs at while having an oversized disk mounted to it.
    Never try to tell me it can't be done
    When I have to paint I use http://kbs.justoldtrucks.com/

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    Tuomas (10-18-2019)

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    Supporting Member Crusty's Avatar
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    Crusty's Tools
    It's a common oversight here Frank that things which spin at 12,000 rpm aren't given any evaluation of the significant effects of rotational dynamics. Seemingly strong things explosively fly apart when spun fast and unbalanced.

    For instance a 5" diameter by 1/2" thick balanced birch plywood disc rotating at 12,000 rpm has a total force of greater than 3500 Newtons acting on it. That's a lot.

    I wouldn't stand within 25' of that thing in motion.
    Last edited by Crusty; 10-17-2019 at 08:03 PM.
    If you can't make it precise make it adjustable.

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    Al8236 (10-19-2019), Tuomas (10-18-2019)

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    Supporting Member Al8236's Avatar
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    Al8236's Tools
    I've been known to do some pretty sketchy stuff in my time,
    But no way would I put that on a high speed grinder!
    From the time you're born till' you ride in a hearse, there's nothing so bad it couldn't be worse!

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    I'm pretty sure there's a lot of tools that can reach such grooves. A chisel would be the first one I'd reach for, and it can even get into holes.


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