ATC with carousel.comp and M6 remap

Good morning

I have an incremental encoder in the spindle motor, and everything works.
In reality however the spindle motor is coupled to the spindle with a belt, can I continue to use the encoder channels A and B on the spindle motor, and use index on the spindle?

Greetings Giampiero

In general, yes, granted the count from index to index will not change due to reduction.
I do not know what happens if the count is not constant.

Dear all,

I'm sorry for opening an old topic again. I am currently evaluating different options regarding an ATC setup. Rack and carousel are both viable options for me. With Carousel having the added bonus of being available as a comp.

Reading through this thread there is one thing that has me puzzled:

What kind of sensors are used and how are they operated. gmarconi2 has two sensors in use which I assume relate to:
carousel.N.sense-M bit in (M=0..personality):
Carousel position feedback pins. In ’index’ mode there will be only 2 pins. sense-0 is the index and sense-1 is the pocket sensor.

I have drawn up a simple sketch to illustrate my interpretation and would greatly appreciate any feedback as to whether or not this is correct.
I have assumed what follows:
-Sense-0 and sense-1 are both inductive sensor looking for targets on different diameters around the axis of rotation
-Sense-0 is looking for an index ((red target labeled I); 1 target on circumference); = home = Pocket 1 (or 0)
-Sense-1 is looking for a target for each pocket (green targets, labeled P), carousel uses this to know how far it has travelled (hence the use of velocity mode over distance)

@gmarconi2: Have you ever followed up an Andys lead regarding the use of step/dir?

carousel.comp can use a variety of different sensor setups.
For your 8-position carousel I think I would use 4 sensors, 3 x absolute binary coding 0 to 7 and 1 index / strobe.

241/5000
Yes your system is the one I used, the two index and sense sensors are on the same line in position 1 then in every sense sensor pocket only.
I used stepper motors, commanded with arduino, I modified the m6 routine and everything works.

Thank you both for getting back to me.

While an additional arduino would do the trick, I’d rather avoid that hassle.

@andypugh:
That would certainly be an option, however, when the carousel gets larger (chaindrive maybe?) it seems not very practical. Hence my simplified approach. Would that work with your component? (Although it would be less safe).

Is there an alternative for an Encoder you would recommend at 16+ nests?