Reply by DMiller

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Posted on belt sander sanding problem

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539 posts in 1351 days

#1 posted 01-20-2018 02:14 AM

I have a Grizzly 6×48 belt and disk sander that I acquired a while ago. I put Abranet 120 grit paper on the belt and am having a problem when I put the piece of wood up to the sanding paper. The sander is vertical if that makes a difference. When I start to bring the wood in contact the wood bounces up or back . So it is not running smoothly. I am not pushing with any force into the belt.

I went to Abranet Mesh because while taking a luthier course on building an acoustic guitar there was very little dust and the finish on things like braces were ready to be cemented to the backs and top.

In reviewing the manual the only thing I can see that might have anything to do with the problem is one section talked about there being no more than 1/16 of between the belt and the table which the wood is resting on. It said if there was more than the 1/16 of an inch there was “a risk of in-running NIP (pinch) points .

What does this mean? Further, can folks suggest what my problem might be and what I might do about it as I really like the Abranet Mesh sanding belts that I have used on another luthiers 6×48 belt sander.

Thank you for any suggestions you may have.
12 Bar

- 12bar

I do a decent amount of sanding with my 4×24 clamped to a table; every so often I have the wood “bounce back” because I wasn’t applying enough force, and/or the sander has begun rocking on the table (if I am understanding your problem correctly). DO you happen to have a new belt, that is not abranet to try and see if it is user mistake, bad sandpaper, or a problem with the machine? Whenever I have had this problem, I have found I just wasn’t pushing hard enough against the sander with the wood. This is the best explanation I have, hope I am understanding the problem correctly. Hope this helps, Dale.

-- Dale Miller Modesto, CA "I can do all things through Christ, which strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

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