Centroid Acorn Orac ATC conversion

[Chaz]

Yep I bored out a sprocket to fit over the rear of the spindle which belt drives an encoder on a bracket. Threading works fine in centroid with this setup.

Thanks, appreciate the response (to an old thread).

Mine has an pneumatic chuck, so have some piping in the way however I'm sure it can be done. Do you recall where / what you used for the encoder itself?

Thanks