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  1. #1
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    Mini bench grinder

    Just made this at work today. It is small and easy to store. I made it to sharpen drill bits, cleanup screw driver ends, and allen key ends. The motor is from an old Lincoln welder cooling fan. The wheel is from an air motor. Works pretty well so far.
    Attached Thumbnails Attached Thumbnails Mini bench grinder-image.jpg  


  2. #2
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    Very nice.
    Looks kinda like a piston ring filer I made once from a sewing machine motor.
    I like turtles

  3. #3
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    I like it. Does that little motor have enough torque?

  4. #4
    turtles make me hot
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    Quote Originally Posted by J.B. Weld View Post
    I like it. Does that little motor have enough torque?
    I bet we'd have a hard time keepin' up with it.
    I like turtles

  5. #5
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    Quote Originally Posted by J.B. Weld View Post
    I like it. Does that little motor have enough torque?
    Ya I was pretty surprised how strong it is. I would guess the RPM is around 1200 to 1500 or so. you can stop it if you press to hard against the wheel, you have to push pretty hard through. I was able to resurface a 3/4" width wheel with another grinding wheel by holding it against the wheel and it slowed down a little but kept going. only issues I see so far is it gets a little hot after about 8 minutes or so of continuous us. There is no cooling fan so as expected I guess.

  6. #6
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    Had to add a gaurd to keep shavings from going in my eye. My shity heath insurance went up another 23%, 3 years in a row. It would cost me 2 car payments to go to the doctor. Insurace premium cost so much you cant aford to actual use the insurance.
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  7. #7
    Plays with tools
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    Bench grinder motors are sealed for a very good reason. But that should do just fine for the occasional light duty job.

  8. #8
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    Quote Originally Posted by customfab View Post
    Bench grinder motors are sealed for a very good reason. But that should do just fine for the occasional light duty job.
    Thanks for the reminder. As you can see the top is wide open. I will make sure to keep shavings and grinding dust out of the motor. That would not end well.

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