On Sep 11 2014 4:03 PM, Gene Heskett wrote: > On Thursday 11 September 2014 12:00:48 David Armstrong did opine > And Gene did reply: >> it's more for Mills than Lathes Gene, but the usual time it takes to >> change a tool in a toolchanger , then have to >> re measure because of a broken bit , half way through a job , >> especialy >> those pcb mills ! > > The PCB mills should be bought with the collars installed, I have > found > they are quite accurate, with a larger error budget being the > randomness > of my snugging up the draw bolt on a morse taper collet.
I agree with the PCB mills should be bought with the collars installed. They are trivially repeatable. If you want to save a little money (assuming that you are doing LOTS of this type of work), buy/build an indexing jig to set the collars so you do not have to depend on buying them pre-installed.. EBo -- ------------------------------------------------------------------------------ Want excitement? Manually upgrade your production database. When you want reliability, choose Perforce Perforce version control. Predictably reliable. http://pubads.g.doubleclick.net/gampad/clk?id=157508191&iu=/4140/ostg.clktrk _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
