From: EBo <eb...@sa...> - 2014-09-11 23:54:12
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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 -- |