C axis thread milling fanuc oi

[Discrepancyform]

So I’m running a vbm with live tooling and we’ve managed to thread mill point to point with it and I’ve also written full circle interpolations long hand but when I try and long hand a thread mill I get “illegal plane select”
Code is something like

X(center of hole)
Z(depth)
G17
G1 X(start point)
G2 x k j z (this is where it alarms and if I remove the z it will run just fine except I would just have 13 grooves per inch obviously)

I was not running with polar interpolation on which I will try tomorrow but it seems like I shouldn’t need to and either the machine or I is missing something.

Any tips?

Thanks.

 

[RJT]

Isn't G17 selecting X-Y plane?

 

[Discrepancyform]

Yes, I’m working in the x-c plane and like I said it works until I add the z move in the line

 

[Ox]

You are wanting to thread mill a hole off center in C?

I am pretty sure that you will be needing Polar.


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Think Snow Eh!
Ox

 

[Discrepancyform]

You are wanting to thread mill a hole off center in C?

I am pretty sure that you will be needing Polar.

Yes

The point to point program esprit spit out did not use polar and like I said I can remove the z move and get it to interpolate a circle without alarming out. But yeah the next chance I get I will try it with polar on.