Contour Question

[cadmonster66]

Hello Ladies and Gentlemen

I have a quick question for tonite.

Is there any way when you contour a circle that the toolpath can be just 1 360 deg. move and not broken into 2 180 deg. moves?

thank you for your time

john

[cadcam]

are you saying after posting you want to see the code put out a 360 arc not two movements?

[ 09-27-2001: Message edited by: cadcam ]

[Guest CNC Apps Guy 1]

As of right now, it is not possible. Maybe with some heave post work, even then.....

[JAMMAN]

Mine does 359.9 in one arc. I can see 359.99 but don't think it is possible for 360. the end of the arc would be at the first xy move, how would the controller know to move at all just seeing I's J's and/or K's?

Jim

[Kevin in MI]

As far as I know the code has to read a start position, with center of arc position given as I & J, and a finish position, also with corresponding I & J. With a 360 degree move the start and finish position are the same so the machine doesn't move cause it's already there. Some machines have different codes available like a fadal control has a code for boring. I don't use it cause the post in Mastercam doesn't write it so I don't know what it is right off hand. If I recall correctly it was one line of code with a parameter for dia only. I'll check it out and get back to you.

[ 09-27-2001: Message edited by: Kevin in MI ]

[Smit]

I don't believe it is possible for Mastercam to automatically output a 360 deg arc in version 8, but I've heard rumor it's coming in version 9. One of our machines requires the program to be edited manually (GE2000 control) to one 360 deg arc rather than 2 180 deg arcs. The one 360 deg arc will work on all of our controls. We have Fadal,Haas, and Fanuc controls. I'll remove the X-Y coordinates so that the machine will return to the same position, and the I and/or J will control the arc diameter.

[Kevin in MI]

The code I was talking about was a fixed subroutine (L9801 I believe). It uses an X and Y for the center and R for the radius. It is only for boring, the tool plunges at center then moves out to cut the radius.

[cadcam]

Now that should be able to be taken care by your dealer adjusting the post.

[ 09-27-2001: Message edited by: cadcam ]