Is the angle between the cheeks (what is the right term?) of the pulley 34 degrees? If so using a tool with VCMT inserts fed straight in might work. See https://www.iscar.com/eCatalog/Family.aspx?cat=5596383&fnum=869&mapp=IS&app= 0&pageType=4&rel=T#:~:text=VCMT%2DSM%20%3A%2035%C2%B0%20rhombic,Positive%20r ake%2C%20low%20cutting%20forces. If that very long URL fails try Googling for "VCMT insert". Both holders and inserts are available cheaply on eBay.
> -----Original Message----- > From: John Dammeyer [mailto:jo...@autoartisans.com] > Sent: Friday, July 03, 2020 7:49 PM > To: 'Enhanced Machine Controller (EMC)' > Subject: [Emc-users] Turning a pulley. > > This isn't as much of a CNC question but more of a tool shape and positioning > question. > http://www.autoartisans.com/mill/SpindleMotorPulley-3.jpg > > I'm having trouble getting past a certain depth while trying to cut the smaller > pulley. The tool holder keeps getting in the way and with the compound set > at 17 degrees it's difficult to follow the inner contour as shown in the 3D print > sample. > > A 1/4" tool bit projects too far. I wonder if grinding a 3/8" tool bit so it can sit > at an angle away from the big pulley face but still track the inside face. And > not hit the other face. Total depth is 0.55" and about 0.3" wide at the > bottom. > > Perhaps someone with more experience can post a sketch of a tool shape that > would solve my problem? > > Thanks > John > > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
