Here is an mspaint diagram of a simple CNC project I'm working on.

http://img227.imageshack.us/img227/7741/untitled6ez.gif

I want to create a txt file with the proper G-code to punch out four .250 in holes through the workpiece. Tool#1 is a .250 in diameter twist drill. Never done something like this before, I've found a few documents on the web that offer help, but I'm still having a hard time putting everything together. Could you guys point me in the right direction as to where to start?

(ex: how do I define the origin at (0,0)? How do I move the machine part to the point (2, 1.5) and punch out a hole at that location? How do I tell the machine to bring the part up .1 in and move to the next point on the workpiece?)

Thanks for your help!

Run at your own risk ! :)

if you machine will take a G81 that a comand for drill cycle G83 is the comand for a peck drill cycl sample file attach i had posted wrong file early and just got back if you go on line and do a search for G and M code you'll find a lot of info the G80 at the end cancel the drill cycle R=rapid plane Q=peck amount

Run at your own risk ! :)

Change all the Z0.0 to Z0.1 to avoid dragging the tip of the tool across your part. :eek:

I dont know what kind of machine your running but this would be the codes for our machines.

T1M6
G00G90G54X2.Y1.5M03S1500
G43H1Z.1M08
G81Z-1.5R.1F5.
Y2.5
X6.
Y1.5
G80
G28G91Y0Z0
M30

Of course the feeds and speeds need to match the material your cutting.

Change all the Z0.0 to Z0.1 to avoid dragging the tip of the tool across your part.

Thanks, ger21

Text file updated (in post #2), hows "Z+0.5" :cheers: