Re: [CAD_CAM_EDM_DRO] poor mans digitizing gizmo

On Thu, 09 Oct 2003 21:11:41 -0000, you wrote:

>
>
>hi all
>
>i´m trying to figure out how to create a dxf contour from a porclain
>bathroom countertop. in fact, i cut and mill out a lot holes for
>porclain and corian sinks in countertops, theres never 2 identical
>ones. today i have to measure, calculate, use radius templates etc.
>to get enough info for making a cad file. i saw one of these
>digitizing arms (costs a fortune)with a probe in the end that one
>just draws along the periphery and voila´ in a sec the dxf pops up.
>would it be posible to build a simple lo-resolution digitizing table
>with scrapped mouse parts, encoders etc.? i was thinking of arrange a
>mouse on a sort of pantograph arm or gantry.
>has anyone tried this or any similar? is there even any software for
>this?

One very simple design uses pots at the joints, then uses the joystick
controller to read them.

Harvey

>
>hope its not to OT...
>
>js
>