@drivetrainsystems if you are using a Single Board Computer attached to the Duet using SPI then you can read the object model from Duet Software Framework, either in a plugin or via the REST API.
@drivetrainsystems yes you need to use a single quote to refer to a lowercase letter axis, in GCode commands when referring to that axis and in the names of homing files. I suspect it is either your zip program or perhaps the unzip in DWC (used when you upload a zip file) that doesn't handle the quote in the name of your homing file.
