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Thread: My 2X72 Belt Grinder

  1. #1
    Join Date
    Mar 2003
    Location
    Iowa
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    428

    My 2X72 Belt Grinder

    I received a lot of good information here at SMC as well as other sources online while researching belt grinders so I thought I would share a couple of pictures of my completed sander.
    Attached Images Attached Images

  2. #2
    Join Date
    Feb 2003
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    McKean, PA
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    Nice, hopefully some guards are going to be added.
    Lee Schierer
    USNA '71
    Go Navy!

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  3. #3
    Join Date
    Mar 2003
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    Iowa
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    Nope......

  4. #4
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    Feb 2003
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    McKean, PA
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    It would probably be a really good idea. There are lots of places to get fingers, clothes, etc caught which would cause some pretty severe damage.
    Last edited by Dennis Peacock; 02-21-2017 at 12:00 PM.
    Lee Schierer
    USNA '71
    Go Navy!

    My advice, comments and suggestions are free, but it costs money to run the site. If you found something of value here please give a little something back by becoming a contributor! Please Contribute

  5. #5
    Join Date
    Sep 2010
    Location
    New England
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    2,474
    Wow. It's two different machines.

    I'd ask how much to make one for me but since I had to ask, I already know I can't afford it.

    Man will that be useful.

  6. #6
    Join Date
    Mar 2003
    Location
    Iowa
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    428
    I have just over $300 in it Dave. I salvaged the motor out of an old treadmill and had the bottom base plate, tool arms (1.5X1.5 aluminum bar) and knobs so that saved me some money. The stand it is on was just a stand I set it on to take the pictures it will probably be on a rolling stand in my shop.

  7. #7
    Very nice!

    Robert

  8. #8
    Join Date
    Nov 2012
    Location
    Southwestern CT
    Posts
    1,392
    Beautiful execution. Love the use of the shock absorber.
    "the mechanic that would perfect his work must first sharpen his tools.” Confucius

  9. #9
    Join Date
    Feb 2003
    Location
    In the foothills of the Sandia Mountains
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    Nicely done!
    Please help support the Creek.


    "It's paradoxical that the idea of living a long life appeals to everyone, but the idea of getting old doesn't appeal to anyone."
    Andy Rooney



  10. #10
    Join Date
    Jun 2009
    Location
    Milltown Indiana
    Posts
    300
    Cool, are those tread mill motors DC? what hp and rpm.
    I am going to get one of these soon.

  11. #11
    Join Date
    Mar 2003
    Location
    Iowa
    Posts
    428
    Yes DC, the one I used is 2.75 hp and rpm is variable from 0 to 6000 (I think) I never run it wide open.

  12. #12
    Join Date
    Oct 2013
    Location
    Germantown, WI
    Posts
    96
    Excellent work! Great finished product and kudos for keeping a good budget on it.

    Bet you can't make just one.

  13. #13
    Join Date
    Dec 2009
    Location
    Mount Sterling, KY
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    Dave, what did you use for the motor speed control?

  14. #14
    Join Date
    Mar 2003
    Location
    Iowa
    Posts
    428
    I used the parts out of the treadmill, bought a potentiometer and made the box. I had to rewire the board to make it control the motor.

  15. #15
    Join Date
    Jan 2008
    Location
    S.E. Wisconsin
    Posts
    9
    Quote Originally Posted by James Combs View Post
    Dave, what did you use for the motor speed control?
    Sorry to butt in but if you go to Ebay and type black box controller for treadmill motor one will come up. I think they are around $100.00 or $150.00 for a complete controller. KB electronics also makes a DC motor speed controller and depending on where you locate it they start around 180.00 or so. The thing with a treadmill motor is you have to keep the fly wheel on it or you will loose a lot of torque.
    Pat
    Sometimes, I wonder what it is I'm trying to do.

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