xPro-V5 VS Plugins_motor

That would be your steps per mm configuration. If you're using the xpro v5 controller, type "$y/stepspermm" into your console to see your setting and "$y/stepspermm=160" to set a new value. This wiki describes all the settings on the controller: https://github.com/Spark-Concepts/xPro-V5/wiki/Changing-settings

I'm assuming you guys both already saw this: https://github.com/Spark-Concepts/xPro-V5/issues/60

Official CNC XPRO 5 settings are on this page.

1) Sensorless Homing: I've added limit switches to my 3018 so I'm familiar with homing in general and how switches play into it, but this controller says it supports Sensorless Homing (https://github.com/Spark-Concepts/xPro-V5/wiki/Hardware_Description). I've gathered that it's a function of the Trinamic stepper driver's stallguard capability but I didn't see anything in the documentation about how to use it. A google search led me to some write-ups for other machines, but what I see appears to be pretty specific to those machines. I'd appreciate any clear info pertinent to if/how that could be used on this machine.

There's a bunch of info on the x-pro here: https://github.com/Spark-Concepts/xPro-V5/wiki

Here is the link for the basic controller hookup, again it is comprehensive and well illustrated. https://github.com/Spark-Concepts/xPro-V5/wiki/Basic-hookup

i've been trying to figure out the sensorless homing too. i found this page https://github.com/grblHAL/Plugins_motor that describes the command to enable sensorless homing. i'm not sure what they mean by "Parameter is a axismask where value is sum of X=0, Y=1, Z=2 etc."