re:Re: Renishaw, digitizers

Jon A wrote:

>Something to keep in mind when digitizing. If you plan to scale the
>part down, any errors in the scanning will be reduced by the scale
>factor. I have done some very small (microscpic) detail work with a
>Deckel pantograph at 10:1 reduction. It's amazing how sloppy
>(relatively speaking) one can get with the pattern and not be able
>to see the errors in the finished part.

Excellent point!

>I like the concept of the Heim joint idea Pete suggested.
>Since the one project I plan to setup scanning for will involve
>conductive parts, I came up with this:<big snip>

I had to re-read the description to "get it". Nice centering/ 3rd
axis ideas! I'd want a probe that can digitise non-conductive
objects. How could we "add" this to your design?

>What this allows is a fast approach until electrical contact is
>made, reversal until circuit breaks + some small amount, then
>approach for the second signal at a much slower rate.

Sounds like a homing routine ;-)

Hope this helps.

Ballendo