Re: [CAD_CAM_EDM_DRO] DRO Idea

I don't want to rain on your parade but have you considered how a DAT works. The tape is flexible and must wrap around the head to some degree. A much better idea would be to use a card reader which is designed to read a flat magnetic strip. It would be easy to stick a length of tape to some plastic and read a magnetic series of ones and noughts from it. Several tracks could be read at the same time using a number of head offset from one another to achieve resolution, I do not know how close the data can be squeezed up. The only problem I can see with this sort of encoder would be laying down the track in the first place.

Another idea could use a laser read head from a CDROM, these are ten a penny with every week bringing out a bigger and faster model. Here again is a problem of obtaining CD's as a strip to make the encoder.



Bill,
I have had similar thoughts, but did know enough about the technology to
pursue it. Do you know of any web sites that will describe the MR read
head?
Thanks,
Bob B.



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