Hello all

How to start (Gcode instructions) my project
I have the next part where I must use an interpolation circular

thank's

This is how to drill the holes :-

O0001 (drill 6 holes on a 30 pcr)

G21 G40 G00 G17 G80

N1 (DRILL 10 DIA HOLES)
T1 M6 (select tool)
G00 G90 G43 X30. Y0 Z25. H1 S750 M3 (move to first hole & start spindle)
G81 Z- 10. R2. F100. (select drilling cycle & drill 10 deep)
X15. Y-25.98 (second hole)
X-15.
X-30. Y0
X-15. Y25.98
X15.
G80 (cancel drill cycle)
G00 Z100. (rapid clear)
M30 (program end)

If you want the outside profile then we need to know the details of the size of the flat.

Graham.

Thank's Graham