Re: making a digitizer probe

I had envisioned chucking up a piece of steel in a nylon collet and
running a wire to the probe. The other end to the part. then
whenever there is contact, the input changes state.

Dave



--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Graham Stabler <eexgs@n...>"
<eexgs@n...> wrote:

> I'd like to try and make myself a digitizer probe now that my mill

is

> up and running but am not sure of how to go about it. So far I

have

> come up with the idea of having a pointed probe running on a little
> precision slide that will block a slotted opto sensor when the tip

is

> depressed.
>
> I'm not sure of the best way to get repeatability but I already

have

> a tiny little THK slide that might form a basis of the unit.

Having

> said that it would not mount easily into the tool holder.
>
> Anyone done this?
>
> Cheers,
>
> Graham Stabler
>
> www.indoor.flyer.co.uk