Encoder Based Progarmmable Limit Switch

To the Group

I would like to see if anyone on the group has some experience or a
suggested source for info on a homebuilt rotary encoder based programmable
limit switch -

I have a project that would be greatly assisted if I could read encoder
pulses and produce output signals based on different portions of the
rotation of one revolution - There would be the possibility of multiple set
points and outputs -

Would like to talk to anyone who has some experience or would like to work
on such a project with me - I know of commercial units but would really like
to have a low-cost homebuilt version if possible - contact me either off or
on the list -

Roland