RE: [CAD_CAM_EDM_DRO] Re: Flexible Couplings

In practice, I have found that even the softer, resilient torque discs have
unmeasurable backlash.


Regards,
Tony


At 08:53 29/04/2004, you wrote:

>Oldham couplings have three pieces. One connects to the motor shaft. One
>connects to the lead screw. The third is a disk that goes in between to
>join the other two. This disk is available in different materials. The
>type of material will determine the amount of backlash in the coupling. If
>you want zero backlash (and of course you do) you will need to use the
>acetel disk.
>
>Mike
>
>-----Original Message-----
>From: Tony Jeffree [mailto:tony@...]
>Sent: Wednesday, April 28, 2004 11:15 PM
>To: CAD_CAM_EDM_DRO@yahoogroups.com
>Subject: Re: [CAD_CAM_EDM_DRO] Re: Flexible Couplings
>
>
>At 05:19 29/04/2004, you wrote:
> >Since I'm not using ballscrews there's already some backlash in the
> >system so perhaps Oldham couplers would do after all the software has
> >backlash compensation.
>
>If properly constructed, Oldham couplings can (should) have zero backlash.