I have about $3000. (CDN) that I can use to buy a 3d printer. I'm considering the Replicator 2 or the Cube. But I worry that these printers won't be suitable for printing the type of thing I am interested in, which is mathematical surfaces and curves in space. I have successfully created files and had them printed by Shapeways. No doubt Shapeways uses much more costly printers. I worry that the Replicator or the Cube won't be able to print my files because of "overhang" or something, but I can't find any definite info about this. I have attached a picture of some of my models (which are painted).