BRIAN GLACKIN wrote: > Helping Dan Field with a question on setting up the Tool table (in another > forum). > > He is using the tool offset commands and cutting with a 60 degree v bit. > > Does the tool table care if its a v bit or just the overall diameter? > http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ToolTable > > The wiki does not seem to address whether is a end, ball or v mill. > The tool table only matters with respect to tool length (G43) and tool radius (G41, G42) compensation. Tool length offsets probably would be set for the tip of the tool (but could be adjusted to the length at the desired cutting diameter, I suppose, for a V engraving bit.) Tool radius compensation is a bit more messy on a V engraving bit, the radius is only right for one specific depth of cut.
Basically, the G-code definition doesn't really apply completely to ball-nose and V cutters, this is just a shortcoming in the RS-274D language specs. If you want to do anything fancy with these types of cutters, especially cutting at different depths of the tip, then you really need to handle that in the CAM system, and not use the radius offsets, as they can't handle the varying radius where the tip meets the work - in other words, in profiling use. Jon ------------------------------------------------------------------------------ Using storage to extend the benefits of virtualization and iSCSI Virtualization increases hardware utilization and delivers a new level of agility. Learn what those decisions are and how to modernize your storage and backup environments for virtualization. http://www.accelacomm.com/jaw/sfnl/114/51434361/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
