Quote Originally Posted by Scott Damman View Post
Anyone know if the smooth stepper from warp9 can do this? It shows resolver connections on the board but does it send back to mach? Also looking at the CS lab boards as well since Jazz has a good review on them. Im thinking I might go for a servo for Z as well since that can give me position feedback into Mach rather cool feature.
Yes and No. The ESS can send the encoder signals back to Mach but only for display purposes and to different set of Encoder DRO's on separate screen. (or can add to Custom screen if you like) Mach will not know anything about positional error and the Main Work DRO's will not update if position moves.

To work like you see in my Video the Controller deals with the Encoders and informs Mach of position directly. The Closed loop between motor and drive is then extended to the controller which keeps track of position and updates Mach's Main DRO's. The ESS cannot do this.

Very Few Step and Dir Controllers do this. Even the CSlabs IP-S which uses STEP & DIR cannot do this. Only the Analog IP-A Version does this.