[binzer]

Does anyone know how to ramp down on a arc? Im trying to get a 1/4 em to ramp down 5 degrees .125 deep while swinging a arc of 7.00 rad ?

[holbieone]

G2 X_._ Y_._I_._ J_._K_._

K is the "Z" end point(in absolute)

K is the "Z" distance(incremental) +,-
you will need to now if your machine is absolute or incremental

[binzer]

I was hoping someone knew how to do it on gibbs.

[cadman]

I assume you are talking about entries. What version are you using? In V8.0 and up there is a Entry & Exit tab in the Contour and Roughing process for different types of ramping entries and exits. If you have an older version use the Helical entry to ramp in.

Another trick would be to create your operation, do an Op to Geometry, create geometry to connect to the converted geometry, and redo that operation but this time select the geometry and use the centerline marker. Kind of involved, but you can do anything you want this way.

The helical entry should do what you want and I would try that first. I use it all the time especially when machining steel, titanium, etc..

[bbern]

If the feature is a closed contour, the Z Contour Ramp plug-in is nice. If it's not closed the tool path will reverse direction on alternate depth cuts, which I don't like very much.
Bill

[machineoperator]

Also under plug-ins is a helix bore option. Maybe this is what you are looking for

[orizaba]

G2 X_._ Y_._I_._ J_._K_._

K is the "Z" end point(in absolute)

K is the "Z" distance(incremental) +,-
you will need to now if your machine is absolute or incremental

What if your machine likes "Radius" and not "I's, J's and K's" ?

[rhundl]

Also in your plugins is a thing for creating helixes. I have used this in the past and it is relatively easy to use. I believe its under plug ins, geometry, create spirol...