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  • Padded Platen Part 2

    From Bob La Londe@21:1/5 to All on Fri Dec 1 13:41:15 2023
    I may still add a "soft" pad to the platen on a sander, but recently I
    order new bench top belt grinders. a 1x42 and a 1x30 similar to my
    Harbor freight one.

    Then when ordering some belts for the 1x42 I ran across this. I bought
    one to see what its like.

    https://www.mcmaster.com/catalog/129/3010/6131A59

    --
    Bob La Londe
    CNC Molds N Stuff

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  • From Bob La Londe@21:1/5 to Jim Wilkins on Fri Dec 1 16:11:28 2023
    On 12/1/2023 3:53 PM, Jim Wilkins wrote:
    "Bob La Londe"  wrote in message news:ukdgdb$20meg$[email protected]...

    I may still add a "soft" pad to the platen on a sander, but recently I
    order new bench top belt grinders.  a 1x42 and a 1x30 similar to my
    Harbor freight one.

    Then when ordering some belts for the 1x42 I ran across this.  I bought
    one to see what its like.

    https://www.mcmaster.com/catalog/129/3010/6131A59

    Bob La Londe

    ------------------------------------

    Those are reinforced. My orbital sander has a felt backing pad that
    seems to increase sandpaper tearing when sanding edges and corners.

    I like surface conditioning pads on a 2" air sander. 3M sells the stuff
    as sanding belts: https://www.amazon.com/Scotch-Brite-Surface-Conditioning-Length-Medium/dp/B0002FU8MS


    I've used surface conditioning belts on the HF 1x30 before. I have to
    help it start the first 50 times or so before it will start on its own.
    They just don't run very well on most 1" sanders. Some belts I can
    never get to start and run. They are thick, and they don't bend as well
    as regular cloth belts. If I ever get around to building a real 2HP or stronger 2x72 I might give surface conditioning belts a try again.

    The HF is going to get used to build a two wheel 1x30 when the new belt grinders arrive. One of the holes in the frame is so wallowed I can no
    longer tighten up the tracking wheel mounting bolt enough to keep it
    from slopping around.

    Anyway I thought this soft belt might flex enough to rough polish an
    extruded surface.


    --
    Bob La Londe
    CNC Molds N Stuff


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  • From Bob La Londe@21:1/5 to Jim Wilkins on Sat Dec 2 11:15:41 2023
    On 12/2/2023 4:52 AM, Jim Wilkins wrote:
    "Bob La Londe"  wrote in message news:ukdp70$222it$[email protected]...

    ...One of the holes in the frame is so wallowed I can no
    longer tighten up the tracking wheel mounting bolt enough to keep it
    from slopping around.
    -----------------------------------

    I've fixed that problem by finding a rod or drill shank of a diameter
    that matched the unworn side of the hole and using it to center the hole position under the mill spindle, then boring the area for a more durable bushing.


    I may just save the motor and pitch it, but for now I am thinking 1/4
    steel plate new frame (with a bushing), and two wheel setup like a
    bandsaw. Of course if I do that then I didn't really need the 1x42 I
    ordered. LOL.

    Oh, I guess I should have mentioned, the last time I fixed it the
    casting broke shortly after and the table fell off. I've been using it
    like that, and I actually like it a bit better. I should have pitched
    the table years ago. I never use it anyway. I pretty much free hand
    anything on the bench grinders or bench top belt grinders.

    I only use fixturing on the D-bit grinder, and surface grinder. I guess
    I kept the table "just in case."

    --
    Bob La Londe
    CNC Molds N Stuff


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