It's only science
XY2 uses heavy duty 80x40mm sections, to construct a sturdy frame.
XY2 envelope design allows user to choose working XY dimensions.
XY2 uses a 'H' construct to support each axis, rather than the more typical cantilever approach.
XY2 uses 'proper' (IGUS) linear bearings (not drawer runners or similar) with polymer sliders, which offer several benefits over ball-bearing slides.
Costs
Standard unit: £1,990.00
Working area: (645mm x 270mm x 80mm)
Working area dimension increase, X axis and/or Y axis:
£20 per 100mm increase per axis