Lathe Macros

With the spindle motor turned off, rotate the chuck by hand through one full turn and see what the motion.spindle-revs pin does.

I have a feeling that this problem comes down to the spindle gearing. Is the encoder on the motor and not the spindle?

The encoder is on the spindle directly

motion.spindle-revs changed by 50 on one revolution

mariusl wrote: motion.spindle-revs changed by 50 on one revolution

Ah, well, there's the problem

You need to change the encoder position scale so that the number changes by 1.000 for one revolution.

andypugh wrote: You need to change the encoder position scale so that the number changes by 1.000 for one revolution.

Just to be clear, and not knowing what decimal separator you use in SA. I was trying to say "exactly one" not "one thousand"

Ok that makes sense. It means that all my other calculations are also bugged as I used the encoder input as gospel.
I checked to see and encoder count is 2024 per revolution. So it uses one edge of the pulse not both sides as I believed.

Oh and I dont really care what we use for separator. I try any until things work. But I got what you meant thanks.

Andy
Your'e Biscuit :woohoo:

And on top of it all it is rps not rpm. That is what caused the confusion for me. I just changed the encoder scale to 2048 and multiplied the feedback by 60