Homebrew PCBs

I have 2 ideeas about homemade drill press:

- car shock absorbers: have zero play, and are verry strong. If I use 
3 of them in triangle arangement...I think I can make hi precision 
component for NASA :-) 
- typewriter machine carriage: allmost zero play. I have a old one, 
verry abused and still have hi precision. 


Adrian