Analog glass scales signals can be divided with off the shelf (or cheaper off ebay) components. I have a heidenhain encoder that by its self has resolution of aprox (its metric) .0005 inches then I have a box that divides by 5 for aprox .0001 inches. The box also converts to square waves signals.Those are common. I have seen others that divide by ten (on ebay) and u can buy others that divide by up to at least 256. and encoders come in different resolution and accuracy . That being a good point that resolution and accuracy are not the same. The right type of scale can be matched to have close to the same thermal growth as the machine does. just info I have gathered.
Chris Morley _________________________________________________________________ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
