On Tue, Sep 07, 2010 at 10:17:01AM -0500, Igor Chudov wrote: > > Just a question. I use quick change toolholders based on NMTB-30. > > I am trying to get a tool table started. And I wonder if I can simply > measure the total length of the tool, in toolholder, with a caliper, > and then subtract say 4 inches and use that as offset.
Yes sort of. If you measure the entire holder including the drawbar screw part, I think you'll probably find some unwanted variation. You should find a way to measure from the taper instead. If you can turn up a ring that matches the taper, and you set that over a hole in your surface plate (or support it up on a pair of 123 blocks if you don't have a hole) and then use a height gauge to measure the tool, you'll get much better results. Also, QC30 holders have a feature that NMTB30 don't: they have a ground flange that is precisely sized and positioned relative to the taper. You might find that you have fine results just setting the flange on 123 blocks and measuring the tool with a height gauge. The flange on those holders is going to be much more trustworthy than the drawbar end. Chris ------------------------------------------------------------------------------ This SF.net Dev2Dev email is sponsored by: Show off your parallel programming skills. Enter the Intel(R) Threading Challenge 2010. http://p.sf.net/sfu/intel-thread-sfd _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
