Re: [CAD_CAM_EDM_DRO] Re: DIY probing

Seems to me your project would be much simple, quicker and cheaper to
accomplish using RTV rubber to cast a mold of the inside if the horns' bell.

After making the casting you'd have two options: 1. Cut the casting in
half, lay it down on a sheet of paper and trace the curve outline; 2.
Create a fixed template of the curve to fit the curvature of the casting.
This one takes a bit of patience to cut/sand, etc. the curve to fit the
casting

Smoke

> Just to explain, I'm trying to probe the inside of a french horn bell
> (in to the start of the curve) to determine its shape. Current idea
> is a table with a cutout the size of the rim - horn is clamped under
> that with the bell opening up. Gantry arrangement moves over this and
> lowers probe down into the bell. Just occured to me I can probably
> borrow the sherline mill Z axis to carry the probe and maybe even the
> X and Y motors to run the gantry, since it need not go particularly
> fast. Of course the temptation would then be to make it heavy enough
> for milling ;-)
>
> Chris