Hi Dave,

On the basis that it is broadly similar to my machine, but with slightly better components and smaller footprint (and assuming that the sides are 15-20mm aluminium plate?), I would expect this to perform very well for MDF and plastics. Aluminium would be best cut in the middle of the bed since you only have a central ballscrew (like my machine). Even so this would not suit regular aluminium cutting.

Adding a plate across the back of the gantry, between the 2 cross members, would be a useful addition.

I know it is only A3 size, but if you ever think you would upgrade to twin ballscrew in the future then you could increase the width of the end plates and add ballscrew mounting holes so it is ready to go. You would also need more holes in the gantry sides to mount the ballscrew.