g18

[Dave Engvall <dsengvall-at-home.com>]

List,

I am working in xz plane with g18.

Snippet:
    g01 z .1 f 15
    x 0
    z -.184
    y .1908
    g03 x 2.249 z - 1.3584  r 2.55 f5
    g01 z .1 f 15 
............
    m2
This snippet occurs several times with various y offsets to create a
surface. 

If one thinks about a disk lying in the xz plane then this creates a surface
from the top center of the disk and going to the right and down (top surface
or radii of the disk, i.e. CW ).

Now at the end of the program...either do m0 and shift to mdi or m2 and go
to mdi. 
Enter the same snippet line by line. The g03 now does a COUNTERCLOCKWISE
cut. Surprise!!!

Certainly glad I was testing this in pink foam not steel.

BTW- this is repeatable at least on my machine...600 MHz P3, 2.0.36, 09J.
Mar 2000 emc. 

I would appreciate someone else trying this.

Thanks, 

Dave Engvall