It would be interesting for me to see how the part was held in the machine.
--J. Ray Mitchell Jr. “I predict future happiness for Americans, if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.” THOMAS JEFFERSON On Mon, Aug 2, 2021 at 10:10 AM John Dammeyer <jo...@autoartisans.com> wrote: > Same tool for both inner hole and outer profile. > Same feeds and speeds and conventional, not climb milling. > G40 -- No compensation. > Only I,J in the file with a G17 preceding them. > > I could hide it considering what it's for and that no one will see it. > But that's not really the point. I'd know. > > Will try it again today this time with entry exit for each pass rather > than just the first and last. > > John > > > -----Original Message----- > > From: Ralph Stirling [mailto:ralph.stirl...@wallawalla.edu] > > Sent: August-02-21 8:12 AM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Something went wrong. > > > > To elaborate a little more, your description sounds a bit like G42 > cutter compensation, described in > > https://linuxcnc.org/docs/2.8/html/gcode/tool-compensation.html . > > > > -- Ralph > > > > On Aug 2, 2021 6:12 AM, Ralph Stirling <ralph.stirl...@wallawalla.edu> > wrote: > > CAUTION: This email originated from outside the Walla Walla University > email system. > > > > > > Cutter compensation enabled? > > > > On Aug 1, 2021 7:26 PM, John Dammeyer <jo...@autoartisans.com> wrote: > > CAUTION: This email originated from outside the Walla Walla University > email system. > > > > > > The milling operation was set up to always be climb milling. Zero point > for the center hole and the outside perimeter was the same. > > And yet it milled more away on the LH side. > > > > The piece was tightly clamped and did not move. The width of the > perimeter on the RHS is correct with the outer diameter at 45mm > > and the inner hole at 32.5mm. > > > > ie. At the RHS it's 6.25mm wide and on the LHS it's 4mm so it's the > milling of the outer that shifted. The inner circle is pretty well > > round. Not as good as a boring tool but still round. > > > > The inner hole was done after the outer perimeter. > > > > Very odd and I don't understand why. LinuxCNC and the motor drives did > not throw up any faults. > > S1100 > > Feed was 307mm/min with 1/4" 2 flute cutter. > > Total depth was 3.2mm and depth per pass 0.9mm. > > WD-40 and compressed air. > > > > John > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > > https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc- > > users&data=04%7C01%7Cralph.stirling%40wallawalla.edu > %7C7289f9725ae7402aa09e08d955b729a7%7Cd958f048e43142779c > > > 8debfb75e7aa64%7C0%7C1%7C637635067436312233%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiL > > > CJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=BqEeOSHMeKIvwcjx14ixRok0Qp2bkvl52bCFZMI3L1k%3D&reserved= > > 0 > > > > _______________________________________________ > > 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 > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
