Re: [CAD_CAM_EDM_DRO] Re: Help needed with G code

Tim wrote:-

> You may have to define your working plane before the "G01 Z-1.20", so
> the machine knows where the starting point is in the Y-Z plane before
> continueing with the arc???????
> I also agree with the use of "K" for Z rotation & redefining Z-1.20
> is not necessary, but it shouldn't hurt you if your in the right
> plane to begin with.
> Hope this helps,

That's an interesting thought. I've finished now for the day so I'll give it a
go tomorrow. In fact I've found an alternative way of cutting this particular
curve using a fixture in the lathe, as I needed the job finished. Not very
satisfactory, I know, so I'll persevere in case I need to use this type of
operation again.

On second thoughts, I'll nip out to the workshop and try it now.......

......Back again. It makes no difference. What I have found is that, using I
and J as parameters, it ends up at the right place, but follows the wrong path.
What is happening is that it recognises the I value, but assumes a value of zero
for J, no matter what I input. Substituting K for J changes the tool path, but
it ends up in the wrong place. I'm perplexed (:<)

Many thanks to all who have offered advice. It's good to know that there are so
many helpful people out there wanting to help.

Thanks again,

Mike