Fanuc circle programming

You can make it other way with horizontal lines instead of vertical and then you can use circle point command, and then offset it by x replies.

The way you want to make it is only possible to teach via "hand" or cam software.

So, I've never tried this on a Fanuc, but... if you put the origin of the UFrame at the center of the arc, with one UFrame axis aligned with the axis of the arc, could you program two points and simply apply a rotational offset to the UFrame each pass? I know how I could do it on a KUKA or ABB.

If I understand what you're trying to do correctly, yes. It looks like you are trying to carry out a Raster Scan over a curved surface.

My normal way of carrying out such a path would be to create a UFRame (Fanuc) or WorkObject (ABB) or Base (KUKA) at the center of the arc, with one axis (say, the X axis) aligned with the axis of the arc. Then I would program the Start Point of the first pass in that frame, over at the beginning of the arc.

Then I would use a FOR loop starting at 0, ending at 180, at a period step of some degrees (depending on the radius of the arc) to apply an RX rotational offset to the frame, and run the point, with a linear offset along the X axis for each pass. Something like (pseudocode):

Move to Point1
XOffset = 0
FOR RXOffset = 0 TO 180 STEP 10
  IF XOffset = 10 THEN
    XOffset = 0
  ELSE
    XOffset = 10
    Frame.X = Frame.X + XOffset
  ENDIF
  Move to Point1
  
  Frame.Rx = RXOffset
  Move to Point 1 
  
ENDFOR

SkyeFire oh, at first I was trying to figure it out how to do it with your description and now Im pretty sure you can do it making UFrame perpendicular to the lower edge, and use the uframe rotation. Nice!

The key would be ensuring that the UFrame origin was dead center to the center of the arc you want to trace, and has the axis you plan to rotate very well aligned with the axis of the arc.

Quote from Wellrick

how would this be accomplished in an abb?

Just off the top of my head... use a Work Object, and perform PoseMult on the OFrame.