cant cut a circle? "current point same as end point of arc"

[maccrazy2]

I have switched from gibbs to bobcad and cannot get the desk cnc to cut a circle. I am trying to create a pocket. I have tried several sizes of pockets and cutters ang get the same message every time I try to use the g code in desk cnc. " current point same as end point of arc" I get this code on line N07

I do not know how to put the drawing file up here bit it is a circular pocket .080 deep that is .160 dia. and the cutter is .032. I did create a contour for the circle and used it to create the toolpath. Anyone know what Is going wrong to cause this? Thanks Chris


(; PROGRAM NUMBER)
(; PROGRAM NAME - .032 PKT.NC)
(; POST - DESKCNC MILL)
(; DATE - SUN. 02/12/2012)
(; TIME - 09:13PM)
N01 G90
(;JOB 1 POCKET)
(;FEATURE POCKET)
N02 S5998 M03
N03 G00 G90 X.0004 Y0.
N04 M08
N05 Z.1
N06 G01 Z-.08 F14.3974
N07 G03 X.0004 Y0. R.0004 F23.9957
N08 G00 Z.1
N09 M05
(; END OF PROGRAM)
N10 M02

[Joe S.]

Hi Chris,
Just looking at the code . . . . .032 + .0008 and you get a pocket .0328
N07 G03 X.0004 Y0. R.0004 F23.9957
I doubt you would even be able to see the table move that little bit of movement.
I would check to see if BobCad is set in MM mode
Check my math, I think the R value should be more like
.072, I don't know what you are cutting but giving the diameter of that cutter F23.9957 seems a bit fast too, esp. at .080 deep.
I doubt you can cut anywhere near that deep without breaking the cutter as that is 2 & 1/2 times it's diameter. If it didn't break
it would very likely make a cone shaped hole.
Bob Cad's default feeds seem way fast for most of my applications.