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  1. #1
    Join Date
    Apr 2005
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    Default Cheap dust filter

    I have a Ryobi sheet sander which has a little dust filter on the back, except at some time in the past, I have thrown the baby out with the bathwater, and the filter has fallen into the bin along with the dust, and it's long gone. It used to work quite effectively, but without the filter, the sanding dust just blows out the back.

    Now, I could just go and buy a new filter, and that will cost half as much as the original tool purchase... So, I'd rather make my own, save some cash and have a little fix-up project. I'm OK with the mechanical parts of it, but I'm not sure about the filter part.

    The original was a little pleated paper cylinder. Can I use coffee filter paper? I have old ceiling batts, or cotton cloth that I could use, but I'm really not sure what will work best. Cleanability is certainly important, which is why the paper is probably good, with a large surface area that can be easily cleaned.

    Or should I not waste my time, and just fork out for a new one? Thoughts?
    Good things come to those who wait, and sail right past those who don't reach out and grab them.

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  3. #2
    Join Date
    Feb 2006
    Location
    Perth
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    Default

    As far as filtering fine dust is concerned they are pretty much all as useless as each other.

    The internal fan on the Ryobi simply doesn't catch much of the fine dust to begin with and the filters and any of the filter media you suggested will be as inefficient as each other.

    To filter the fine dust requires
    a) A much finer filter than a new Ryobi filter or any of the filter media you suggested
    b) A much more powerful fan to catch the dust at source.

    So, if you just want to catch the bigger stuff and not worry about the fine stuff you could use anything you suggested.

    A better solution would be to hook the sander up to a DC or a Vac that vents outside the shed.

  4. #3
    Join Date
    May 2011
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    Default

    I agree with BobL, a hook up to a vac or DC would be best. That being said the things you have suggested won't deliver sufficient surface area to prevent clogging of the filter medium in a very short time. Have a look at some of the small motor filter elements, large lawn mower etc., I suspect that you will get a better result with something of that ilk. You're probably better off using any funds you're planning on throwing at the project on hooking up the vac to the sander? Used vac hoses can be had for nix and if you use your imagination adaptors can be made from freebies too.

  5. #4
    Join Date
    Apr 2005
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    Default

    Thanks for your thoughts. Yes, hooking up to the vac would be better, and I have done this for other tools, so I'll do this for the sander as well. But I'll also try to put something basic together for the built-in filter for those little jobs that aren't worth hooking up the hoses for. You're probably right that it doesn't catch the invisible dust, but the 'mower catcher' on the back of the sander actually does quite a good job on the 'visible-mess' dust.

    Thanks for your thoughts!
    Good things come to those who wait, and sail right past those who don't reach out and grab them.

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