[deetech]

Can some one help me out with Macro Programming on Fanuc Oi Mate TB?

i have to make an elliptical bore. Specs are as under:

Major axis = 56
Minor axis = 50

bore is half ellipse.

[fordav11]

because its a lathe with XZ plane the solution is not simple with macro. its pretty easy on a mill using XY by machining point to point with G1 using SIN and COS to calculate the start/end coordinates. you could transpose that method to a lathe if you were really desperate. another way if you want to cut G2/G3 is to use the 3-center or 4-center arc method and cut the ellipse with just 3 or 4 arcs.
a better way is to use any CAM software by importing the drawing and machine it and the software will give you the program in a few seconds.