New SLB same problem

[Chucky_ott]

@PBA At the top of gSender, there’s an option to show settings that have changed from the defaults. Maybe enable it to see if there’s anything obvious.

And maybe upgrade to 1.6.2

Also take a look at this post if your rotary uses a closed loop motor

Altmill settings

@Keithleatherwood I don’t know if this has anything to do with your issue, but are you using the closed-loop stepper in your vortex? If so, and if you are connecting it to the A axis driver on the SLB-ext, you should not be setting the rotary/4th axis slider to rotary. It stays in 4th axis and is not moved for flat work.