On Sunday 17 February 2013 15:26:18 Jon Elson did opine: > Pete Matos wrote: > > I think > > > > that may be overcomplicated and have been considering making a slot > > wheel that would be attached to the spindle body itself and use some > > leading edge timing with a photointerruptor or other sensor to locate > > toolchange position as well as track spindle speed for rigid tapping > > operations. > > See http://pico-systems.com/bridge_spindle.html for how I added > a spindle encoder to a Bridgeport that had no provision for getting > at the spindle with a traditional encoder. I used the existing gear > on the spindle and added sensors to make it into a quadrature plus > index encoder. It works great for rigid tapping. > > Jon > I would love to be able to do something like that on my toy Jon, but I have been unable to find metallic retrofit gears. They are nylon, with a fairly high hub/keyway failure rate on the shift gears. I don't know as I could stand the noise of metal gears, the rattling of the nylon is bad enough.
> ------------------------------------------------------------------------ > ------ The Go Parallel Website, sponsored by Intel - in partnership with > Geeknet, is your hub for all things parallel software development, from > weekly thought leadership blogs to news, videos, case studies, > tutorials, tech docs, whitepapers, evaluation guides, and opinion > stories. Check out the most recent posts - join the conversation now. > http://goparallel.sourceforge.net/ > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> is up! My views <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> There are two ways of disliking poetry; one way is to dislike it, the other is to read Pope. -- Oscar Wilde I was taught to respect my elders, but its getting harder and harder to find any... ------------------------------------------------------------------------------ The Go Parallel Website, sponsored by Intel - in partnership with Geeknet, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials, tech docs, whitepapers, evaluation guides, and opinion stories. Check out the most recent posts - join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
