A couple of points;both here and elsewhere in cyberspace there are people pulling AXYZ machines apart so that they can change controllers or hardware so there may be some hardware gathering dust on shelves that you could ask questions about.The other option i to break up the area of your job so that the file size shrinks to something the machine will accept.I have some knowledge of Vectric characteristics,but not Aspire and i have used Vcarve for 3D work in spite of the limitations.My suggestion is that you might be able to use vectors-on extra layers- to create boundaries that act as the limits of your cutting area and select them when defining the area you are dealing with.A bit of overlap may be useful to avoid ridges where two zones meet.

I tried the technique when trying to finish areas that had sharper creases than the larger ball end cutter I was using for speed and finish quality overall couldn't access.It would have been absurd to go over the entire job with a tiny cutter so I created arbitrary boundaries and the process succeeded.The more comprehensive CAM software alternatives can do this automatically if you select a cleanup or leftover option with the tools defined.The less comprehensive range of options in Vcarve can do much the same but you may have to define the boundaries more than once to get total coverage.