Hey Steve,

have a look at the interpreter source file interp_convert.cc, function
int Interp::convert_straight.

The piece of code that you probably want to change is this one:
    START_SPEED_FEED_SYNCH(block->k_number, 0);
Just as a try I'd suggest you change that to:
    START_SPEED_FEED_SYNCH(block->f_number, 0);
and then recompile.

Also do change the code for G33.1 a little bit later on in the same
function.

BR
Max




> Hi guys
> 
> Can somebody explain why K was used for Feed in G33 move and not F ?
> 
> I'm finding it impossible to produce a turn post processor because of
> this. I can get my CAM to put the K in, but it also puts the F in too!
> 
> Is there a particular machine this was based on then I can look at the
> post processor for that.
> 
> Another weird one with feed is it appears not to be modal if you do an
> arc then a G01 - emc moans that there is no feed set on the G1 line?
> 
> N1220 G40 
> N1230 G03 X7.046 Z-8.649 I-0.06 K-0.08 F200 
> N1240 X11.595 Z-13.26 I-3.623 K-4.654 
> N1250 X12.744 Z-14.093 I-0.316 K-0.833 
> N1260 X12.06 Z-14.795 I-0.891 K0.0 
> N1270 G01 X10.948 Z-15.229
> 
> Failing on line N1270 saying no feed set for G1 ?? 
> 
> Surely G01, G02 and G03 are in the same modal group?
> 
> Steve Blackmore
> --
> 
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