Re: [CAD_CAM_EDM_DRO] digitizer

Smoke wrote:

> The probe needs to be made of a spring quality (high carbon) steel or some
> other flexible materia
>
> >ptengin@... wrote:
> >
> >I'd be interested - I'm wondering what makes the probe hang down
> >exactly vertically, and if it is so constrained vertically, what enables it
> >to flex sideways without breaking if it runs sideways into the vertical
> edge of
> >the object.

The probe is free-floating. It is not made to bend, but to tip off of the
resting position. If it comes straight down on the object, or bumps into
the side of it, it will deflect off of that resting position, breaking an
electrical contact. The tricky part is to design a setup that allows the
probe to sit in a totally repeatable position, and return there every
time with no uncertainty. Some part of the probe (up in the probe
body) sits on some set of objects that allow it to rest at this unique
position.

I'm not sure I really described this clearly, but I tried.

Jon