Re: [Emc-users] Lathe questions

[Brian M. <br...@do...>]

HI Andy,

That worked perfect.  At least for the stepper motor... Down the road I will
try with the spindle motor.

Thanks for the help.
Brian

On Sun, Aug 28, 2011 at 2:36 PM, andy pugh <bod...@gm...> wrote:

> On 28 August 2011 20:28, Brian May <br...@do...> wrote:
> >  but in the process of
> > changing to the serial port and using the GS2 driver - which looks like
> it
> > will work for the GS3.  (I guess I would have to stick to PWM if I wanted
> to
> > try and control it like a servo?)
>
> You might well be able to control it with serial. But PWM definitely works.
>
> > Right now I have Axis0, Axis1, and Axis2.  Axis0 is the X Axis 1 is the
> "y"
> > axis which does not exist and Axis 3 is the Z.  I am required to zero "y"
> > axis in the Axis gui, (even though it really does not exist).  Which from
> > what I see just zeros itself and that is all.  So would I just create an
> > Axis 3 as a rotary axis - if so that is simple enough?
>
> It's easiest if Axis 5 is the C axis.
> I have had a fiddle in a simulator.
> In the [TRAJ] Section of the INI you need
> AXES = 6
> COORDINATES = X Z C.
>
> You then need to set up an [AXIS_5] Section with the parameters for
> your C axis.
> Set HOME_SEARCH_VELOCITY to zero, unless you want to set up homing to
> the encoder index (there isn't much point generally)
>
> In the HAL file clone one of the other axes (assuming that they are
> stepper) and connect to the axis.5.xxxxx pins instead of 0 or 2.
>
> That _should_ do it.
>
> --
> atp
> "Torque wrenches are for the obedience of fools and the guidance of wise
> men"
>
>
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-- 
Brian May
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