On Wed, Jul 02, 2008 at 04:47:31PM -0700, Kirk Wallace wrote: > > Videos here: > http://www.wallacecompany.com/machine_shop/HNC/Rigid_Tapping_3.html > http://www.wallacecompany.com/machine_shop/HNC/Rigid_Tapping_1.html > http://www.wallacecompany.com/machine_shop/HNC/Rigid_Tapping_2.html
Wow that is a neat tool turret. It changes fast. One thing that jumps out at me is that it seems your accelerations on X/Z are extremely low. It looks like it takes an inch or more to get up to your rapid speed. If accel really needs to be so low you should try starting the tapping move way outside the part (an inch) or tapping at very low rpm and see if that helps. It's possible it hasn't settled into sync with the spindle quite yet, when it's cutting the first couple threads. You are using a sprial point (if thru hole) or spiral flute tap (if not) right? On Wed, Jul 02, 2008 at 04:29:10PM -0700, dave engvall wrote: > Chris, > Any chance that what Kirk is seeing is the same as the problem on the > Mazak and could be fixed in like manner? Kirk and I talked about the importance of cranking up the SERVO and TRAJ rates and I think he is running both at at least 1kHz now. Any slower just isn't enough to get a nice synchronized reversal. Chris ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
