Electronic edge finder: how do they work?

[BillTodd]

Lee, is that an IBM 'niipple' (touch mouse) being used as a touch sensor?

Any idea how accurate it is? (ie. repeatability etc.)

[irving2008]

Lee, is that an IBM 'niipple' (touch mouse) being used as a touch sensor?

Any idea how accurate it is? (ie. repeatability etc.)

not huge I'd imagine..., although the long probe improves. my concern would be how consistent the 4 switches are relative to each other...

[Lee Roberts]

Yes it is, ill need to have a dig on the zone to find the Thread the guy started about using it. Cant remember all the details but i think he did get it going and was using it..

[Lee Roberts]

Hi guys, here is the link to the guys thread on the zone: http://www.cnczone.com/forums/showthread.php?t=51079

What i also liked about this setup was that you could use it on wood and so on, gaging on presure rather then a "completed cicuit".