Centroid Acorn Orac ATC conversion

[Chaz]

Just bought a Orac, no ATC however. Will likely also go Centroid. Need to decide between keeping the steppers or putting servos on.

EDIT, looking at the pics, looks like you have made your own encoder setup so that you can do tapping etc with Centroid?

[Steve_p]

Just bought a Orac, no ATC however. Will likely also go Centroid. Need to decide between keeping the steppers or putting servos on.

EDIT, looking at the pics, looks like you have made your own encoder setup so that you can do tapping etc with Centroid?

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.

[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