cutting a radius

[kazam07]

i'm trying to cut a radius on the front of a part. it looks like a tit on the front.
G1X-.015
G3X.0458Z.015R.025
G1X.114
X.196Z.056
I'm using tool noise comp but when i add the g41 it does even go anywhere close to the part. i'm using a .007 rad insert.

[sencinia]

Can I see the whole program?
What you are showing will error out on my CNC code anylyzer.

[kazam07]

T1414(FINISH FACE)
G99G97G40
G0X.3Z0.0
G1X-.015
G3X.0458Z.015R.025
G1X.114
X.196Z.056
X.3
G28U0

(i also tried this & it didnt work)
T1414(FINISH FACE)
G99G97
G0X.3Z0.0
G1X-.015
G0W-.05X.05
G41X0Z0
G3X.0458Z.015R.025
G40G1X.114
X.196Z.056
X.3
G28U0

Thats all of the block that i can remember. i'm at home now. i made the post while at work. i know i have to use the G41 but when i but it in i get an alarm. it tells me that it cant complete the block but alarm book doesnt give me a fix. just tells me to edit the program. the only thing i can tell you now is that its got a .025 radius on the center of the face then it should radius into the face of the part then face up to .114 dia. then cut an angle at a 45 degree to a dia. of .196 which is past my .193 dim that is my thread major.

one other thing that i might have wrong. the direction that tool is pointing in the geometery page. the book indicates that it should be pointing to the 4 but the guy that programmed the machines before me had it as a 3 which in the book it shows 3 to be a backturn. i'm using a 35 degree front turn with a .007 radius. i dont know if this helps but it still dont work.

[kolodok]

T1414(FINISH FACE)
G99G97G40
G0X.3Z0.0
G1X-.015
G3X.0458Z.015R.015 (you do have R.025)
G1X.114
X.196Z.056
X.3
G28U0

[pp-TG]

What size Radius are you trying to cut? And I take it the front of the part is not your Z0.? Your best bet is to program not using cutter comp it sucks on lathes....

[cinomarra]

use g42 instead of g41 for external turning

[cinomarra]

and make sure to have proper tool position in offset pagerobably t3

[ctate2000]

cinomarra is correct. You need g42.

[Mazaholic]

Are you using a sub spindle?
Because it's rare that i see a lathe that is Z positive towards the chuck unless it's a sub chuck.
If your trying to go CCW then your gonna go the long way around.