dave wrote: > > What are you using for electronics to examine the encoder output? > My Universal PWM Controller has all the hardware needed, so I just made a different encoder module in the VHDL language to read the serial stream verbatim, and send it as ten bytes. It is not in any way a "finished product", just entirely a prototype hack. > I keep thinking about an encoder with that resolution directly on the > shaft of an indexer or even an A, B or C axis. Then again, maybe 10K > counts/rev is good enough, using my usual 2500 ppr Koyo encoders. > The aA1000 is one million counts/rev (actually I am guessing 1048576 or 2 ^ 20) just the same device with higher interpolation, I think.) > On my machines the computer is powered by 120V single phase and is > independent of the 3 phase used for spindle, servo drives, etc. > The computer is powered up all the time so any movement is tracked. > Don't know if this is practical for everyone. > Well, I'm sure that's the way most people run their Fanuc-controlled machines, the only time they are powered off is when the power goes out, or they are being serviced.
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