On Tue, 2013-12-17 at 18:32 -0500, John Alexander Stewart wrote: > Hello all; > > 2014 sees me finishing up my lathe conversion to CNC. (Emco Compact-8). > > I'm a bit "confused" about spindle sensors, and I do see a few different > designs. > > Question - if you had to do it again, what would YOU do for a modern > spindle encoder? > > (trying to learn from those who have gone before me, wish me luck!) > > PS - I'm tempted to just go for the CNC4PC Index Pulse Card, but maybe > there are better alternatives out there. > > Thanks; > John A. Stewart. Hi John, Indeed I hope 2014 does see an operating cnc lathe in my shop. I ripped out all the mechanical stuff and started on a cnc implementation of a Jet 12 x 40. For the spindle I did something dumb which I will need to fix. Used a 360 cpr Koyo encoder but geared it (in a moment of dullness) 2:1 so index pulses are not unique in angular index. Duh! I geared this with a couple of timing pulley and a timing belt. I just need to make room for 1:1 so I can use the index without hassle. Yes, I know I could divide by 2 but the KISS principle is overpowering.
If anyone has a really neat idea for getting the Z ballscrew aligned with the Z axis I'm all ears. I hope everyone has time with family over the holidays but also has time to work on THEIR pet projects. Good Grief! Winter solstice is Sat. As the frog said, "time fun when you are having flies." Dave > ------------------------------------------------------------------------------ > Rapidly troubleshoot problems before they affect your business. Most IT > organizations don't have a clear picture of how application performance > affects their revenue. With AppDynamics, you get 100% visibility into your > Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! > http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
