Polar Programming G16 Fanuc
Category : Fanuc Mill
Polar Programming G16
Polar programming is cool.
No one loves polar bears more than me.
Polar means you are working around a pole. So your programmed position is determined by a radius and an angle.
No use??? Think about it. Polar Programming G16.
Holes on a pitch circle. Mill a hexagon. Piece of piss. Honestly.
Polar bears, polar programming here we go. Don’t go too close to polar bears as they have a propensity to rip you head off.
Oh No Polar Programming G16 is an Option
Sorry yes it’s n option. Anyway hopefully you have it. Don’t blame me blame the tight arse who bought the machine.
Imagine you had some holes like this to machine.
First thing you need to do is program a G16 to say you want to use polar programming.
G16 on its own means your datum is the centre of the pole (X0 Y0)
G16 X50. Y50. would put your pole centre at X50. Y50.
Anyway we want it at zero which is the centre of this pattern of holes. So it’s just G16.
Once G16 is active then X becomes your radius and Y becomes your angle.
What’s The Time Mr Wolf?
The angle is always measured from 3.15 as below. (If you’re reading this mum sorry about busting your clock but I needed the picture)
And the angle is measured counterclockwise. This applies to all CAD CAM.
So this angle would be Y60. (60 degrees) and the X would be X25. (Radius)
So you program looks like this
Now see it running.
Lets look at the milling in more detail
Note that the distance to the sharp corner is 46.188 The line N1 uses this.
Polar Programming G16 It’s So Easy
Then we just program each position as an angle (no need for the radius because it does not change)
Each point you are going to has a radius from centre and an angle.
Incremental What’s That All About?
Don’t forget this works in incremental as well so be careful (you’re not insured for this)
It gets even better when you use the L command.
Polar Programming G16 Action
Now when it comes to the milling it’s so simple don’t you just love this.
What do you think?
Add it to your digital toolbox??
If you have been affected by any of the issues in this post or need CNC Counselling then contact me.
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