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#1
 
09-03-2009, 03:10 PM
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Anyone know of any company that carries left hand metric ball screws? I need a 16-2 for the cross slide on my lathe. I don't want to change the pitch, or the handwheel grads will be off. Thanks, Paul  |
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#2
09-03-2009, 03:20 PM
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| Check Misumi USA. I don't see it in the print catalog, but didn't look very long. Their site is great. Certainly easy if you use trapezoidal or acme screws.
__________________ Mike Visit my projects blog at: http://mikeeverman.com/ http://www.bell-evermannews.com/ http://www.bell-everman.com |
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#3
09-03-2009, 03:23 PM
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| Are you sure it is a ballscrew? It is unusual to have a ball screw on a manual lathe, due to the possibility of backfeeding. If it is regular thread, you could always cut one.  Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#4
09-03-2009, 03:38 PM
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| Thanks Mike. I would use a servoBelt if it were the proper application.  Al, it's a ACME screw in there right now, but I'm cnc'ing it so I would like to use a ball screw. Do you think this is a bad idea? I would also like to keep the manual handwheel for non cnc type stuff, I didn't really think about the backdrive issue. Paul |
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#5
09-03-2009, 04:37 PM
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| If CNC'ing you really need to go ball screw, and I prefer to use either MDI or Handwheel (electronic) for simple manual functions. Al.
__________________ CNC, Mechatronics Integration and Machine Design. “Logic will get you from A to B. Imagination will take you everywhere.” Albert E. |
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#6
09-03-2009, 04:47 PM
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| Yeah, I'm just thinking of the times where I don't want to turn on the computer to do some simple little job, hence keeping the real handwheel. Paul |
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