Juergen, This link will give you the EMC2 files used to run the 5 axis cinci with TLO and Pivot Length offsets. The machine has an A axis carried by the B axis and both ride on the Z axis. I hope this will help you.
https://www.dropbox.com/s/n3qnegnk52ke1gj/emc2-stuart.tgz?dl=0 thanks Stuart On Sat, May 8, 2021 at 8:56 AM Juergen Gnoss <jgn...@hotmail.com> wrote: > Thanks Stuart, > > right now, that sounds like villages in the desert to me, but I'll go into > it. > > me ... going to dive into lcnc documentation > > thanks Ju > > > ________________________________ > From: emc-developers-requ...@lists.sourceforge.net < > emc-developers-requ...@lists.sourceforge.net> > Sent: Saturday, May 8, 2021 8:19 AM > To: emc-developers@lists.sourceforge.net < > emc-developers@lists.sourceforge.net> > Subject: Emc-developers Digest, Vol 181, Issue 7 > > Send Emc-developers mailing list submissions to > emc-developers@lists.sourceforge.net > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/emc-developers > or, via email, send a message with subject or body 'help' to > emc-developers-requ...@lists.sourceforge.net > > You can reach the person managing the list at > emc-developers-ow...@lists.sourceforge.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Emc-developers digest..." > > > Today's Topics: > > 1. Re: 4th axis pivot point question (Stuart Stevenson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 7 May 2021 21:52:42 -0500 > From: Stuart Stevenson <stus...@gmail.com> > To: EMC developers <emc-developers@lists.sourceforge.net> > Subject: Re: [Emc-developers] 4th axis pivot point question > Message-ID: > < > cahf93hrpamdpb19judkm6-17mfvverxpgfw9cvpcg07wp8e...@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" > > Juergen, > Are you talking about the display on the AXIS preview or are you talking > about machine motion? > > If you are talking about the display on the screen I don't have much > experience with that. > > If you are talking about machine motion then - > You can modify your kinematics file to include a pivot length distance on > the y axis/joint position to adjust for the pivot length you determine. sin > B axis value times pivot length and cos B axis value times pivot length > also > You can modify your kinematics file to include a tool length from the tool > table to adjust the y axis/joint position for the tool length. sin B axis > value times tool length and cos B axis value times tool length > also > You can modify the kinematics and hal files to create a variable to be read > from a hal file to allow you to adjust the pivot length value. > You will also need to pass the tool length value into the kinematics file. > > You will then have 4 axis pivot and tool length compensation. > > Ideally, the program would position the XYZ tool tip and have a B axis > value. The pivot length value and the tool length MUST add up to the > distance from the tool tip to the pivot point. You can arbitrarily choose > where the pivot point is measured from along the spindle/tool axis. Your > tool length will have to be measured from the same point along the spindle > tool axis. > > thanks > Stuart > > On Fri, May 7, 2021 at 5:38 PM andy pugh <bodge...@gmail.com> wrote: > > > On Fri, 7 May 2021 at 16:43, Juergen Gnoss <jgn...@hotmail.com> wrote: > > > > Pivot point of the B axis is about 100mm above spindle collet. > > > > > > Do I need to tell LCNC something about that in configuration or hal, or > > is > > > that handled by tool offset in Z ? > > > > > > > It's not really handled at all. > > > > The machine will do what the machine does, that is fixed by the > mechanics. > > > > The graphical preview will assume that the B axis is along Y = 0. > (because > > it has no way to know any better) > > > > -- > > atp > > "A motorcycle is a bicycle with a pandemonium attachment and is designed > > for the especial use of mechanical geniuses, daredevils and lunatics." > > ? George Fitch, Atlanta Constitution Newspaper, 1912 > > > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > > > -- > Addressee is the intended audience. > If you are not the addressee then my consent is not given for you to read > this email furthermore it is my wish you would close this without saving or > reading, and cease and desist from saving or opening my private > correspondence. > Thank you for honoring my wish. > > > ------------------------------ > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > ------------------------------ > > End of Emc-developers Digest, Vol 181, Issue 7 > ********************************************** > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > -- Addressee is the intended audience. 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