C-axis Rotation

[Mcam Nut]

I am having problems with a part that is larger then my X,Y limits, and I would like to drill some holes and also machine the outside profile using the c-axis to stay within the machine limits. When I attempt to use rotary axis control it puts the toolpath to the X+ side of the part, where I have to be on the X- side. is there a way to force the toolpath to machine from the X- side?

[Reece L Gibson]

Is X- the normal side you are usually on for regular turning?

[Mcam Nut]

The machine is a 5 axis mill with a C-axis table, however the table is positioned to the right side of the main table, so we can rotate the B-axis to work on the side plane. Doing this really limits our X travel when working on the top plane. Jim at Gentex helped me out with a alternative way get this part finished, but it would be nice for future parts to be able to do this, if it is possible.

[Pat-TGM]

Mcam Nut,

 

Just rotate top T/plane & C/plane 180 Deg. About Z axis.

 

So The post will automatic out put B 180. & change X+ to X-

[Mcam Nut]

That is basically what I ended up doing, but I was only able to machine 1/2 of the part at a time, 1 side at C0 and the other at C180, but what I would like to do is have the C-axis rotate as I am machining a contour, so I can machine the profile with one operation.

[Pat-TGM]

quote:

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what I would like to do is have the C-axis rotate as I am machining a contour, so I can machine the profile with one operation.

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As you metion above .

 

You have to use "rotary axis control > 3-axis > Rotate about Z axis" and modify you post at polar interpolation section.

 

Depend on your post setup. Please show me your section of polar interpolation

 

code:

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 pxyzcout2       #polar interpolation

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[Mcam Nut]

I will look at that tomorrow, thanks.