arc post

[jbert]

I am running an older Hurco BMC20 and having issues with syntax errors in machine. The program is using the arc filter and posting arcs in XZ and YZ.

EX. G19 G3 Y5.3904 Z.1207 I0. J5.3904 K.1

N0260 G3 Y5.3899 J5.3904 K.1

N0270 G18 G2 X-5.3761 Z.1555 I-5.3761 J0. K-.0828

If I manually delete the I0. and J0. the err goes away. The control does not want to see these zero values.

Any suggestions???

Thanks

[John Summers]

Use the 'd' (delta) option in the format statement (FS) for I,J,K. This means if delta is zero, it is not necessary to output a coordinate. In other words, 'd' is used for incremental programming. You may have to set up a new FS statement for I,J,K.

[jbert]

Do I go thru control def to find that, or is that in the post file?

[John Summers]

The FMT and FS statements are in the post file.

[jbert]

Where does it need to be input?

I dont see a reference to arcs.

 

# Format statements - n=nonmodal, l=leading, t=trailing, i=inc, d=delta

# --------------------------------------------------------------------------

#Default english/metric position format statements

fs2 1 0.7 0.6 #Decimal, absolute, 7 place, default for initialize (

fs2 2 0.4 0.3 #Decimal, absolute, 4/3 place

fs2 3 0.4 0.3d #Decimal, delta, 4/3 place

#Common format statements

fs2 4 1 0 1 0 #Integer, not leading

fs2 5 2 0 2 0l #Integer, force two leading

fs2 6 3 0 3 0l #Integer, force three leading

fs2 7 4 0 4 0l #Integer, force four leading

fs2 9 0.1 0.1 #Decimal, absolute, 1 place

fs2 10 0.2 0.2 #Decimal, absolute, 2 place

fs2 11 0.3 0.3 #Decimal, absolute, 3 place

fs2 12 0.4 0.4 #Decimal, absolute, 4 place

fs2 13 0.5 0.5 #Decimal, absolute, 5 place

fs2 14 0.3 0.3d #Decimal, delta, 3 place

fs2 15 0.2 0.1 #Decimal, absolute, 2/1 place (feedrate)

fs2 16 1 0 1 0n #Integer, forced output

fs2 17 0.2 0.3 #Decimal, absolute, 2/3 place (tapping feedrate)

[Steve Biehl - Cimquest Inc]

jbert,

the format statement above are the different forms. You can modify these or better yet add your own.

 

You then call the format for the variables,

 

# --------------------------------------------------------------------------

fmt N 21 n$ #Sequence number

fmt X 2 xabs #X position output

fmt Y 2 yabs #Y position output

fmt Z 2 zabs #Z position output

fmt X 3 xinc #X position output

fmt Y 3 yinc #Y position output

fmt Z 3 zinc #Z position output

 

 

The variable xabs would be using format # 2, xinc is using format 3.

[John Summers]

FS2 is like the older (original) FS statements. The difference is that FS2 contains TWO statements, the first for inch, and the second for metric. FS3 in your post contains the 'd' for incremental values. The number in the FMT statement refers to a FS statement. The FMT statement for I,J,K should refer to FS 3.

fmt I 3 i # I format

...