RE: Initial success and questions about EMC and lathes.

[Kurtis Martineau <klmartineau-at-shaw.ca>]

Howard,

Here is a link to Thomas Kramer's web site at NIST.  I found this manual to
be an excellent description of the EMC interpeter.
http://www.isd.cme.nist.gov/personnel/kramer/publications.html#RS274NGC3

Kurtis


> -----Original Message-----
> From: emc-at-nist.gov [emc-at-nist.gov]On Behalf Of Howard Bailey
> Sent: Tuesday, August 06, 2002 11:38 PM
> To: Multiple recipients of list
> Subject: Initial success and questions about EMC and lathes.
>
>
>
> I have gotten my Sherline lathe to run under EMC (BDI, RTlinux
> 6.2, etc) and do
> what I tell it to to a fair extent.  I am pleased so far and plan
> to add a
> driven axis to the cross slide for light duty tapping as well as
> making some
> quick change tooling blocks to enhance speed and accuracy.  The
> CNC conversion
> was done with stepper motors without encoders, Sherline motor
> mounts, and a
> stepper motor driver from Brewingtontech.com.
>
> >From what I have seen so far, EMC seems to be primarily designed
> for use with
> mills.  I set up the axes so the cross slide is X and the bed is
> Z, as seems
> standard for lathes.  G18 sets the workplane to X-Z and things
> work fine.  When
> I try to use a cutter radius compensation, however, I get the
> message that it
> can't be used in planes other than X-Y.  I can swap axes and do a
> find and
> replace on my G-code to account for the change easily enough, but
> will this
> allow me to use radius comp with my lathe?
>
> Does EMC have any provisions for canned roughing and finishing cycles as
> offered on some lathes using G72, G73, and G74?  If so, could
> someone refresh
> my memory with the syntax of these commands?
>
> Any help would be appreciated.
>
> Regards,
>
> Howard Bailey
>
>
>
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