3D view requires marker for origin OR shift grid midpoint to origin.

[Mathew Boban]

There needs to be some sort of marker that shows where the tool head origin is on the 3D view.

Otherwise, after some inadvertent rotations of the view, one no longer knows where to place a part such that it prints close to the origin.

If you place a part at any other corner when the physical tool is not above the back left corner of the build tray, it will be out of bounds.

Another possibility is to shift the grid in FabStudio such that it is centered on the tool head origin. this gives you an inherent reference, and I feel like it makes more sense - why have a grid only in one quadrant relative to the tool head?