On 15 June 2012 04:28, charles green <xxzzb...@yahoo.com> wrote: > it is not a tool changer, it is a spindle changer. there is probably a gear > mechansim somewhere in the middle of the carousel that engages whichever > spindle is pointing at the table to a single spindle motor.
I did wonder if that was the case, but rejected the idea as being too expensive and likely to lack rigidity. I designed an almost-identical system for a bond tester once (one motor and skew-gears on the selected tool) but that was a very different application. That does remind me of a tiny "encoder" that I designed for the same machine. We machined two eccentrics at 90 degrees on the shaft (two flats might also work) and then had two leds and detectors that were occluded by the eccentrics. It was possible to deduce shaft angle from the relative intensities. The whole thing was in a 6mm housing round a 4mm shaft. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
