[Big John T]

So your saying a command like:

G3 J-1.

Will now work as it should?

I'm guessing it always worked as it should but now it is better in TRUNK. I have not tested it in 2.2.x so I have no idea if it works there.

John

[Andre' B]

Since the G3 modal just like X,Y, and Z all you should need is the J.
This code should move to point x0 y1 z0 and make 5 circles around 0,0,0 with a radius of 1 inche.

G0 X0.0 Y1.0 Z0.0
G3 J-1.0 F10.0
J-1.0
J-1.0
J-1.0
J-1.0

[Big John T]

The cool thing is if you add a Z to that you get a spiral

John

[skullworks]

I didn't have anything to test on either.

But the Docs used to say that an X and/or Y was required for any G2|G3 move in G17. ( When using Arc centers not Radius )

"It is an error if:

• X and Y are both omitted.
• or an I or J are both omitted."

[Big John T]

and the 2.2 docs still say that

http://www.linuxcnc.org/docs/devel/h...in.html#r4_4_2

John