I've been taking an interest in this story LOHAN
because for their previous project PARIS
I modeled the aircraft
in SketchUp for them.
Anyway, the guys at Southampton Uni are designing their latest spaceplane, and they use 3T RPD
to print their designs. This company is UK based, and promises delivery times of 8 days or less, so I thought I'd get a quote from them. I sent my latest design to them, and they quoted five
times the price of Shapeways for the same material (laser sintered nylon).
They asked why my pieces were hollow, and I explained that I was used to paying for the volume of material consumed. However, their quote was based on the volume the parts take up in the machine, so hollowing them makes no difference
So, it's still Shapeways for me.