Strange lathe motion.

The thing is, we still have no idea what the original problem is..

SOLVED!
The error:
N39 G3 X54.7 Z40.2 I2.2 K0. - Original
N39 G3 X54.9 Z40.2 I2.2 K0. - HAS TO BE
so as the starting point calculated from previos position:
N37 G2 X50.5 Z36.5 I0. K5.
N38 G1 Z38.
X=50.5
Z=38
The end point for X = 2.2*2+50.5=4.4+50.5=54.9
The end point for Z = 38+2.2=40.2
Hence the G3 command looks like:
G3 X54.9 Z40.2 I2.2 K0.
The lathe behave itself strange in THIS point.
Please, correct the sintax interpritator in EMC 2.5. PLEASE!

Glad you solved it.

While I was pouring over your original code I found that N15 and N56 appear to be missing the decimal point also. It's a small thing.

N15 G0Z37.X21
N56 G1X80

Should likely be:

N15 G0Z37.X21.
N56 G1X80.

Does emc2 interpret those values as x21 or x0.0021?

forhire wrote:

N15 and N56 appear to be missing the decimal point also.
...
N15 G0Z37.X21.
N56 G1X80.

Does emc2 interpret those values as x21 or x0.0021?

I don't think that those decimal points should be there at all.

X21 is fine, and means move X to 21 (mm in this case).
To move to X=0.0021 you put X 0.0021.
I see no point using decimal points when there are no places of decimals.

andypugh wrote:

forhire wrote:

X21 is fine, and means move X to 21 (mm in this case).
To move to X=0.0021 you put X 0.0021.
I see no point using decimal points when there are no places of decimals.

Thanks for clarifying that. My Mori requires the decimal... so that is how my plotter is setup.