On Sunday 05 August 2018 13:43:45 Ken Strauss wrote: > > -----Original Message----- > > From: Gene Heskett [mailto:[email protected]] > > Sent: Sunday, August 05, 2018 12:57 PM > > To: [email protected] > > Subject: Re: [Emc-users] Cutter compensation with mill turning > > > > On Sunday 05 August 2018 09:07:29 Ken Strauss wrote: > > > > Looking at the drawings for position 9, page 78 of 738, I too am > > confused. Can we be enlightened? IMO there are only 8 usable > > positions. Which in the practical world, none are 100% accurate > > because no one sets up a tool with the full side of its cutting edge > > inline with either axis. Thats just asking for and usually getting a > > squeak/chatter and a broken insert. > > The I/J parameters on a G10 L1 allow the specification of the > FRONTANGLE and BACKANGLE shown in the drawing. I'm guessing that > 30-degrees is the default for these angles.
But, from what reference is that +-30 degrees measured? Are we talking true, as in 0 degrees means its pointed straight away from the operator +-30 degrees? Or are we assuming a 30 degree angle measured from the tools actual orientation, which ack the Doc.pdf, is every 45 degrees around the compass? It seems to me that rather than 8 arbitrary positions, it should have been specced in degrees, with 0 up or away. The math to draw the backplot correctly would have been no more complex than it is now, and the 1 to 8 lookup table used to convert the 1 t8 into a real angle, could probably just go away. Thanks. -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
