On Tue, 12/10/13, Stephen Dubovsky <smdubov...@gmail.com> wrote: Subject: Re: [Emc-users] Acra CNC refit progress. To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> Date: Tuesday, December 10, 2013, 2:55 PM On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole <linuxcncro...@gmail.com> wrote: > I've got an Erickson QC30 on my Bridgeport CNC mill. > R8 does not maintain any accurate Z reference after a tool change. > Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943deg [both from wikipedia]. Both of them the taper face is the gauge line (they don't seat on a flat face or anything.) Both have 1.25" max taper diameters. They are basically identical. So if you can get repeatable pull/torque both should seat just as repeatably. SMD
R8 is mainly used for collets instead of tool holders. If you're doing all one off stuff or will use a single setup for a production run then it's not a big deal. If you're constantly swapping tools then collets are a pain. ------------------------------------------------------------------------------ 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 Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
