Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Now I have never built a CNC anything and I am not overly mechanical.
Right that is my qualifications out of the way...

I was thinking about high torque motors to drive a linear thread and I
thought about those really cheap cordless drills. That is idea pt1.

Now of course you need some sort of feedback for the position, the
normal way would be to put a shaft encoder on the drive. My thinking
is that if you used a linear encoder then you would get absoulte
positioning thereby negating the need for backlash compensation. Now a
quick look around ebay reveals that linear encoders are not cheap. So
has anyone used optical mice for a linear encoder? (idea pt b)

Here endith todays musings.

Mike