Moving X and Y tangent to Z

I am new to Linuxcnc, but love it. I am building a high power laser for drilling purposes and I have completely customized Linux to my machine.

I only have one last hurdle to overcome and I am not sure the best way to explain this, but here goes:

I am using this machine to drill conical holes in very hard material. Parts are normally around 3/8" thick and is spinning. the conical hole is normally around 20 degrees of taper (10 per side) and where it breaks through is as small as .003". My machine is an X,Y,Z configuration and the part is mounted on the X-Y table and Z is a movable high power focal lens.

As there is no way to perfectly square the laser beam to the X-Y axis I am trying to find a method of moving the X and Y axis to the tangent of the Z axis to keep the beam on the part center as Z moves up and down.

Most every part has different geometry. I could do it with cam software but that would be way too time consuming for the volume of parts that I am running. I created an NGCGUI tab to program each one quickly and efficiently.

I have a camera system installed and can accurately measure the X-Y deviation at specific Z heights.

So is there a way to create a program that runs in the background that will move X and Y tangent to the Z movements while still maintaining X0 Y0 at say Z-1.

I hope this all makes sense. Any help would be appreciated. If this is in the wrong section please feel free to move it or let me know and I will.

Thanks,
Kent

Thanks for the response.

Having trouble installing. I get this message

wdd@wdd-desktop:~$ sudo apt-get --install millkins.c
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package millkins.c
wdd@wdd-desktop:~$

woodburn@woodburn-desktop:~$ sudo comp --install millkins.c
sudo: comp: command not found
woodburn@woodburn-desktop:~$


Sorry for being a pain in the butt......

woodburn@woodburn-desktop:~$ sudo apt-get install linuxcnc-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package linuxcnc-dev
woodburn@woodburn-desktop:~$


Once again """SORRY""".....but what am I doing wrong?

woodburn@woodburn-desktop:~$ sudo comp --install kent.c
Traceback (most recent call last):
File "/usr/bin/comp", line 1335, in <module>
main()
File "/usr/bin/comp", line 1318, in main
shutil.copy(f, tempdir)
File "/usr/lib/python2.6/shutil.py", line 88, in copy
copyfile(src, dst)
File "/usr/lib/python2.6/shutil.py", line 52, in copyfile
fsrc = open(src, 'rb')
IOError: [Errno 2] No such file or directory: 'kent.c'
woodburn@woodburn-desktop:~$


Here is the lastest Andy andy ideas???

I am using 2.5.0