Re: [CAD_CAM_EDM_DRO] Re: Rotary to linear translation - an interesting idea.

You are right about the tape will stretch if rigidly mounted and then deflected.
That is a one time deal and it is independent of the encoder wheel moving up and
down the tape and therefore will not affect the calibration. (Except while tightening
that is.)

Whoa, so many opinions and no flames or complaints yet!

Bertho
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james owens wrote:

> If we can back-track a little. The orginal idea was for a twag tight foil anchored at both ends. If you then deflect the foil by any means the effective lenth becomes greater, you can't get something for nothing. Even if the stretch returns with metal memory the lenth must alter for any deflection to take place. If the tape is longer the count of the code wheel must alter. Quite which way I don't know, I haven't thought it through yet.
>
> Regards,
>
> Terry.