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Thread: Eccentric grinder from angle grinder - video

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    Jon
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    Eccentric grinder from angle grinder - video

    Eccentric grinder from angle grinder. By Master Sh. 5:09 video:


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    Floradawg (Mar 31, 2022), NortonDommi (Mar 31, 2022), rlm98253 (Mar 30, 2022), swk (Mar 31, 2022)

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    Supporting Member desbromilow's Avatar
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    other than making the sanding disc "wiggle" I don't see what value this is adding - what am I missing?

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    I wish I had that vise.
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    Quote Originally Posted by desbromilow View Post
    other than making the sanding disc "wiggle" I don't see what value this is adding - what am I missing?
    An oscillating sander is more efficient than a pure rotary one and is less likely to gouge soft work and leave a series of small swirl marks as compared to large semi-circles which is why they are used to cut paint. Also don't clog sandpaper as much as a rotary sander.

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    Supporting Member desbromilow's Avatar
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    Quote Originally Posted by NortonDommi View Post
    An oscillating sander is more efficient than a pure rotary one and is less likely to gouge soft work and leave a series of small swirl marks as compared to large semi-circles which is why they are used to cut paint. Also don't clog sandpaper as much as a rotary sander.
    Thanks NortonDommi, so it is just "wiggling " to create much smaller movements - and the why is what you said above about small swirls, and less clogging of the paper.

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    Supporting Member Toolmaker51's Avatar
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    Quote Originally Posted by desbromilow View Post
    Thanks NortonDommi, so it is just "wiggling " to create much smaller movements - and the why is what you said above about small swirls, and less clogging of the paper.
    It also utilizes more of the abrasive available, with the center, not building up a raised deposit. The semi-circles are about 3/8" diameter, instead of concentric scratches. Not as fine a finish, but much like lapping.
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    Quote Originally Posted by Toolmaker51 View Post
    It also utilizes more of the abrasive available, with the center, not building up a raised deposit. The semi-circles are about 3/8" diameter, instead of concentric scratches. Not as fine a finish, but much like lapping.
    Thanks!!! - makes sense - you can tell I don't do a lot of sanding, but I daresay that will change one day.



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