Ahh, that is probably why folks do it directly in hardware, eh?
The actual signal is 24 bit, 90khz so I probably could get the raw position kinda fast, but the latency on serial link might be a bit much. What we do on PWM channels with shaft encoders though is go real fast until we're nearing the end of our travel and slow down logarithmically until we get where we want.
Granted, this probably isn't something for high-end machines. At the very least, I guess (if you have an old computer laying around) it is an easy way to get DRO on your mill. |