On Mon, Feb 14, 2011 at 9:58 PM, Chris Radek <ch...@timeguy.com> wrote:
> On Mon, Feb 14, 2011 at 09:31:31PM -0600, Igor Chudov wrote: > > Right now I have at most 5 inches of Z axis travel. This is sufficient > for > > most parts, except when I have to use a short tool (little end mill) and > a > > long tool (drill bits in chucks). > > > > In this latter case, if I move the knee by hand, I lose the Z position > and X > > and Y offsets. > > Why do you lose X and Y? > > > I have a DC servo motor (really just a DC motor with a shaft sticking out > in > > the back) with a 15:1 gear reduction. So, it will let me move the knee at > a > > reasonable speed. > > [random thoughts follow] > > Can you put a glass scale on the knee? I would at least measure the > knee's acme screw before trusting it. You could use screw comp but > you'd need to have a way to home it. > > If you get full servo control working, and make the knee W, you can > have your long tools like your drill have tool lengths in W. This > would be really handy: t(drill) m6 g43; g0 w0 (knee moves down) > > Chris, when you say this, did you just write a shorthand for two statements? T<drill> M6 G43 G0 W0 Or can I write two statements on one line, separated by a semicolon? thanks i ------------------------------------------------------------------------------ What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
