Re: Single parameter G02 conversion

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "kdoney_63021"
<kdoney_63021@y...> wrote:

> I am using a new DXF converter which produces single parameter G02
> moves. My CAM system requires 2. How do I come up with the second
> parameter? The following is a sample:
>
> Bearing4tool1
> G00G90X0.75Y1.25
> G00G90Z1.52
> G01G90Z1.5F0.01
> G01G91Z-0.01F0.01
> G01G91Y0.2F0.01
> G02J-0.2
> G01G91Y0.2F0.01
> G02J-0.4
> G01G91Y0.154F0.01
> G02J-0.554
> G00G91Y-.010Z.010
> G00G90X0.75Y1.25
>
> ...

Most controllers allow the incremental positions that result
in zero to be omited.
So in your case a
G02J-0.2
is the same as
G02I0J-0.2
The same is true when I contains a value just add J0.
It is also possible to add X and Y when it is not
called a full circle is commanded so just use the
X and X values of the previous position.
Be sure you understand the code conventions your controller
uses there a different conventions of circular interpolation
out there.
Some use inverted I and J positions and others are
absolute coordinates only.
Good Luck