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Thread: Why???

  1. #1

    Why???

    I am wondering why can one not use the motor shaft as spindle for the lathe. Just machine an adaptor to use over for the different accesories. This elimenates the pulleys, belts and the space that they take.

    Thank you

    Alfredo

  2. #2
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    I've seen Japanese turning doing just that. In the demo I saw, he had the motor on the table with the spindle facing him.

  3. #3
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    My first reaction to this question is why not indeed...but I would think the bearings wouldn't hold up...plus speed control would be voided without pulleys and such, unless it is a varible speed motor.
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  4. #4
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    Most motor shafts are pretty small diameter and not made of real strong steel. I think one good catch on a medium sized bowl or plate would bend it.
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  5. #5
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    Nova DVR.
    Gordon

  6. #6
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    yeah thats my thinking... a good ol' catch would just screw it all up, better to have belts that can slip if necessary. just my thinking, I have no proof to back that up.
    Ben

  7. #7
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    I don't think the motor bearings would withstand the abuse and I don't think the shafts are strong enough unless you are doing small turnings.
    Bernie W.

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  8. #8
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    Quote Originally Posted by Gordon Seto View Post
    Nova DVR.
    That's how I understand the Nova DVR to be also. But it's a different type of motor than the usual copper wound motor.

  9. #9
    Curt....I suspect its bearings are dramatically different too!

    If you look at the head stock on a normal lathe....the bearings are greater sized than the bearings on the motor. Different pressures and different bearings.
    Last edited by Ken Fitzgerald; 02-09-2008 at 02:32 PM.
    Ken
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  10. #10
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    Yeppers, the DVR is a special motor with a heavy shaft (and bearings) intended for woodturning. I suspect a regular electric motor would not have a shaft or bearings up for the task. Small spindle work (like pens) would probably be fine, but I'd be leery of trying anything very big.
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