Just a run-down of the main frame characteristics.
Jubilee’s XY Origin is defined as follows:
This location is one corner of the 300x300mm usable build plate space. Putting the origin here * makes it easy to define a 300x300mm build plate region in slicers * makes it easier (no negative numbers) to change the tool post locations of tools when viewed from the back
XY Tool Offsets
The above XY origin location is also “ZProbe Centric.” That is, when no tools are loaded, the ZProbe acts like a “virtual tool tip,” where all dimensions are based on the ZProbe location on the carriage. When tools are picked up, the machine’s XYZ locations are offset such that the machine’s tool tip location replaces the role of the ZProbe location.