2009/6/13 Lawrence Glaister <ve...@shaw.ca> > Hi Kirk, > Looks like you have been having fun in gcode. One thing you might want > to consider for an encoder wheel is to make the cutouts the same size as > the solid areas to get as close to a 50% duty cycle on the detector(s) > as possible. You didnt say if you were just using the wheel for a pulse > generator or a 2 channel encoder. You might also consider adding another > hole for an index detector if you need that. > Along a similar line, you can check out a lathe spindle encoder I built > a while back. The gcode program can be adjusted to make an encoder of > any number of pulses. If you are using slot source/detectors, you have > to make sure the holes in the disk can be reached. > > cheers... post a picture when you get it made! > Lawrence > > http://members.shaw.ca/swstuff/spindle-encoder.html > http://members.shaw.ca/swstuff/spindle-encoder.ngc > > What am I missing, why do you need 3 encoders?
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