BlueFinn Here is my understanding and research on the differences. Versatile Plastic uses, IIRC, EOS 3D printers. Shapeways has used these printers since the beginning, so they know how to tweak them. They have a certain layer height and can produce very good prints. The HP MultiJetFusion makes several improvements over the EOS printers. The HP uses a layer height that is approximately 1/3 smaller than the EOS, this aids in fusing the layers together as well as making angled planes smoother (smaller steps). The second improvement is that the HP uses a liquid binding agent, the result of this is that liquid fills in all spaces between the granules of nylon powder, not that there is much space anyway, but it is all gone with the binder. This prevent voids from forming in the melted plastic. Both the HP and the EOS printers use the same (basically ) nylon powder so no differences there. The results are that the HP not only looks better and feel better without additional polishing, but it is also stronger too. HP had posted a few YouTube videos showing just how strong their printed models are.

Just a note to everyone, I am moving away from Versatile Black, all items I design and Shapeways sells that are black will only come in MJF Black, other colors remain the same as before. HP is only available in Black and Gray.